Collection: Balls - Metallic - Stainless Steel

Balls -> Metallic -> Stainless Steel
Diameter (D) Material Precision Hardness Properties Colour Indicative
Image
Metallic Balls - 2.778 mm 440C Stainless - ISO 3290 Grade 40 Ball
Diameter (D)
2.778
mm
+/- 0.005080
(Equiv. 0.109 in.)
Material
440C Stainless
Precision
ISO 3290 Grade 40
Hardness
55-60 Rockwell C
Properties
Commonly used in precision bearings. Corrosion resistant.
Colour
Silver
Metallic Balls - 2.778 mm 440C Stainless - ISO 3290 Grade 40 Ball
Material: Stainless Steel AISI 440C    Specific Gravity: 7.833   
Category: Balls - Metallic - Stainless Steel - 400 Grade
Part Number: BL-00278-S440-G40 (PK-100)
107 units (10700 pcs) Available Now | Further orders can be expected around Thu, Jul 02, 2026
Regular price $6.14 AUD
Regular price Sale price $6.14 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 107 available can be backordered.
Diameter (D) Material Precision Hardness Indicative
Image
Metallic Balls - 2.778 mm 440C Stainless - ISO 3290 Grade 40 Ball
Diameter (D)
2.778
mm
+/- 0.005080
(Equiv. 0.109 in.)
Material
440C Stainless
Precision
ISO 3290 Grade 40
Hardness
55-60 Rockwell C
Metallic Balls - 2.778 mm 440C Stainless - ISO 3290 Grade 40 Ball
Material: Stainless Steel AISI 440C    Properties: Commonly used in precision bearings. Corrosion resistant.    Colour: Silver    Specific Gravity: 7.833   
Category: Balls - Metallic - Stainless Steel - 400 Grade
Part Number: BL-00278-S440-G40 (PK-100)
107 units (10700 pcs) Available Now | Further orders can be expected around Thu, Jul 02, 2026
Regular price $6.14 AUD
Regular price Sale price $6.14 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

107 units (10700 pcs) Available Now. Backorder if more than 107.
Metallic Balls - 2.778 mm 440C Stainless - ISO 3290 Grade 3 Ball
Diameter (D)
2.778
mm
+/- 0.000762
(Equiv. 0.109 in.)
Material
440C Stainless
Precision
ISO 3290 Grade 3
Hardness
55-60 Rockwell C
Properties
Commonly used in precision bearings. Corrosion resistant.
Colour
Silver
Metallic Balls - 2.778 mm 440C Stainless - ISO 3290 Grade 3 Ball
Material: Stainless Steel AISI 440C    Specific Gravity: 7.833   
Category: Balls - Metallic - Stainless Steel - 400 Grade
Part Number: BL-00278-S440-G3 (PK-10)
8 units (80 pcs) Available Now | Further orders can be expected around Mon, Jul 13, 2026
Regular price $3.14 AUD
Regular price $7.24 AUD Sale price $3.14 AUD
Priced, Stocked and Sold Per 10 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 8 available can be backordered.
Metallic Balls - 2.778 mm 440C Stainless - ISO 3290 Grade 3 Ball
Diameter (D)
2.778
mm
+/- 0.000762
(Equiv. 0.109 in.)
Material
440C Stainless
Precision
ISO 3290 Grade 3
Hardness
55-60 Rockwell C
Metallic Balls - 2.778 mm 440C Stainless - ISO 3290 Grade 3 Ball
Material: Stainless Steel AISI 440C    Properties: Commonly used in precision bearings. Corrosion resistant.    Colour: Silver    Specific Gravity: 7.833   
Category: Balls - Metallic - Stainless Steel - 400 Grade
Part Number: BL-00278-S440-G3 (PK-10)
8 units (80 pcs) Available Now | Further orders can be expected around Mon, Jul 13, 2026
Regular price $3.14 AUD
Regular price $7.24 AUD Sale price $3.14 AUD
Priced, Stocked and Sold Per 10 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

8 units (80 pcs) Available Now. Backorder if more than 8.
Metallic Balls - 3 mm 304 Stainless - ISO 3290 Grade 200 Ball
Diameter (D)
3.000
mm
+/- 0.01270
(Equiv. 0.118 in.)
Material
304 Stainless
Precision
ISO 3290 Grade 200
Hardness
25-39 Rockwell C
Properties
Low magnetic permeability. Good corrosion resistance
Colour
Silver
Metallic Balls - 3 mm 304 Stainless - ISO 3290 Grade 200 Ball
Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80    Specific Gravity: 7.916   
Category: Balls - Metallic - Stainless Steel - 304 Grade
Part Number: BL-00300-S4-G200 (PK-200)
59 units (11800 pcs) Available Now | Further orders can be expected around Thu, Jul 02, 2026
Regular price $4.86 AUD
Regular price Sale price $4.86 AUD
Priced, Stocked and Sold Per 200 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 59 available can be backordered.
Metallic Balls - 3 mm 304 Stainless - ISO 3290 Grade 200 Ball
Diameter (D)
3.000
mm
+/- 0.01270
(Equiv. 0.118 in.)
Material
304 Stainless
Precision
ISO 3290 Grade 200
Hardness
25-39 Rockwell C
Metallic Balls - 3 mm 304 Stainless - ISO 3290 Grade 200 Ball
Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80    Properties: Low magnetic permeability. Good corrosion resistance    Colour: Silver    Specific Gravity: 7.916   
Category: Balls - Metallic - Stainless Steel - 304 Grade
Part Number: BL-00300-S4-G200 (PK-200)
59 units (11800 pcs) Available Now | Further orders can be expected around Thu, Jul 02, 2026
Regular price $4.86 AUD
Regular price Sale price $4.86 AUD
Priced, Stocked and Sold Per 200 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

59 units (11800 pcs) Available Now. Backorder if more than 59.
Metallic Balls - 3 mm 316 Stainless - ISO 3290 Grade 200 Ball
Diameter (D)
3.000
mm
+/- 0.01270
(Equiv. 0.118 in.)
Material
316 Stainless
Precision
ISO 3290 Grade 200
Hardness
25-39 Rockwell C
Properties
Resistant to severe corrosive conditions
Colour
Silver
Metallic Balls - 3 mm 316 Stainless - ISO 3290 Grade 200 Ball
Material: Stainless Steel 316 (Similar to A4 or 18-10)    Specific Gravity: 7.972   
Category: Balls - Metallic - Stainless Steel - 316 Grade
Part Number: BL-00300-S6-G200 (PK-500)
10 units (5000 pcs) Available Now | Further orders can be expected around Thu, Jul 02, 2026
Regular price $6.14 AUD
Regular price Sale price $6.14 AUD
Priced, Stocked and Sold Per 500 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 10 available can be backordered.
Metallic Balls - 3 mm 316 Stainless - ISO 3290 Grade 200 Ball
Diameter (D)
3.000
mm
+/- 0.01270
(Equiv. 0.118 in.)
Material
316 Stainless
Precision
ISO 3290 Grade 200
Hardness
25-39 Rockwell C
Metallic Balls - 3 mm 316 Stainless - ISO 3290 Grade 200 Ball
Material: Stainless Steel 316 (Similar to A4 or 18-10)    Properties: Resistant to severe corrosive conditions    Colour: Silver    Specific Gravity: 7.972   
Category: Balls - Metallic - Stainless Steel - 316 Grade
Part Number: BL-00300-S6-G200 (PK-500)
10 units (5000 pcs) Available Now | Further orders can be expected around Thu, Jul 02, 2026
Regular price $6.14 AUD
Regular price Sale price $6.14 AUD
Priced, Stocked and Sold Per 500 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

10 units (5000 pcs) Available Now. Backorder if more than 10.
Metallic Balls - 3 mm 440C Stainless - ISO 3290 Grade 16 Ball
Diameter (D)
3.000
mm
+/- 0.00254
(Equiv. 0.118 in.)
Material
440C Stainless
Precision
ISO 3290 Grade 16
Hardness
55-60 Rockwell C
Properties
Commonly used in precision bearings. Corrosion resistant.
Colour
Silver
Metallic Balls - 3 mm 440C Stainless - ISO 3290 Grade 16 Ball
Material: Stainless Steel AISI 440C    Specific Gravity: 7.833   
Category: Balls - Metallic - Stainless Steel - 400 Grade
Part Number: BL-00300-S440-G16 (PK-100)
13 units (1300 pcs) Available Now | Further orders can be expected around Thu, Jul 02, 2026
Regular price $3.68 AUD
Regular price Sale price $3.68 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 13 available can be backordered.
Metallic Balls - 3 mm 440C Stainless - ISO 3290 Grade 16 Ball
Diameter (D)
3.000
mm
+/- 0.00254
(Equiv. 0.118 in.)
Material
440C Stainless
Precision
ISO 3290 Grade 16
Hardness
55-60 Rockwell C
Metallic Balls - 3 mm 440C Stainless - ISO 3290 Grade 16 Ball
Material: Stainless Steel AISI 440C    Properties: Commonly used in precision bearings. Corrosion resistant.    Colour: Silver    Specific Gravity: 7.833   
Category: Balls - Metallic - Stainless Steel - 400 Grade
Part Number: BL-00300-S440-G16 (PK-100)
13 units (1300 pcs) Available Now | Further orders can be expected around Thu, Jul 02, 2026
Regular price $3.68 AUD
Regular price Sale price $3.68 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

13 units (1300 pcs) Available Now. Backorder if more than 13.
Metallic Balls - 3.175 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
3.175
mm
+/- 0.01270
(Equiv. 0.125 in.)
Material
304 Stainless
Precision
ISO 3290 Grade 100
Hardness
25-39 Rockwell C
Properties
Low magnetic permeability. Good corrosion resistance
Colour
Silver
Metallic Balls - 3.175 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80    Specific Gravity: 7.916   
Category: Balls - Metallic - Stainless Steel - 304 Grade
Part Number: BL-00318-S4-G100 (PK-100)
448 units (44800 pcs) Available Now | Further orders can be expected around Thu, Jul 02, 2026
Regular price $3.68 AUD
Regular price Sale price $3.68 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 448 available can be backordered.
Metallic Balls - 3.175 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
3.175
mm
+/- 0.01270
(Equiv. 0.125 in.)
Material
304 Stainless
Precision
ISO 3290 Grade 100
Hardness
25-39 Rockwell C
Metallic Balls - 3.175 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80    Properties: Low magnetic permeability. Good corrosion resistance    Colour: Silver    Specific Gravity: 7.916   
Category: Balls - Metallic - Stainless Steel - 304 Grade
Part Number: BL-00318-S4-G100 (PK-100)
448 units (44800 pcs) Available Now | Further orders can be expected around Thu, Jul 02, 2026
Regular price $3.68 AUD
Regular price Sale price $3.68 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

448 units (44800 pcs) Available Now. Backorder if more than 448.
Metallic Balls - 3.175 mm 316 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
3.175
mm
+/- 0.01270
(Equiv. 0.125 in.)
Material
316 Stainless
Precision
ISO 3290 Grade 100
Hardness
25-39 Rockwell C
Properties
Resistant to severe corrosive conditions
Colour
Silver
Metallic Balls - 3.175 mm 316 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 316 (Similar to A4 or 18-10)    Specific Gravity: 7.972   
Category: Balls - Metallic - Stainless Steel - 316 Grade
Part Number: BL-00318-S6-G100 (PK-100)
252 units (25200 pcs) Available Now | Further orders can be expected around Thu, Jul 02, 2026
Regular price $6.14 AUD
Regular price Sale price $6.14 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 252 available can be backordered.
Metallic Balls - 3.175 mm 316 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
3.175
mm
+/- 0.01270
(Equiv. 0.125 in.)
Material
316 Stainless
Precision
ISO 3290 Grade 100
Hardness
25-39 Rockwell C
Metallic Balls - 3.175 mm 316 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 316 (Similar to A4 or 18-10)    Properties: Resistant to severe corrosive conditions    Colour: Silver    Specific Gravity: 7.972   
Category: Balls - Metallic - Stainless Steel - 316 Grade
Part Number: BL-00318-S6-G100 (PK-100)
252 units (25200 pcs) Available Now | Further orders can be expected around Thu, Jul 02, 2026
Regular price $6.14 AUD
Regular price Sale price $6.14 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

252 units (25200 pcs) Available Now. Backorder if more than 252.
Metallic Balls - 3.175 mm 420 Stainless - ISO 3290 Grade 20 Ball
Diameter (D)
3.175
mm
+/- 0.00254
(Equiv. 0.125 in.)
Material
420 Stainless
Precision
ISO 3290 Grade 20
Hardness
55-60 Rockwell C
Properties
Commonly used in precision bearings. Corrosion resistant.
Colour
Silver
Metallic Balls - 3.175 mm 420 Stainless - ISO 3290 Grade 20 Ball
Material: Stainless Steel AISI 420C Rc 46-52    Specific Gravity: 7.833   
Category: Balls - Metallic - Stainless Steel - 400 Grade
Part Number: BL-00318-S420-G28 (PK-100)
205 units (20500 pcs) Available Now | Further orders can be expected around Sun, Jul 19, 2026
Regular price $10.95 AUD
Regular price Sale price $10.95 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 205 available can be backordered.
Metallic Balls - 3.175 mm 420 Stainless - ISO 3290 Grade 20 Ball
Diameter (D)
3.175
mm
+/- 0.00254
(Equiv. 0.125 in.)
Material
420 Stainless
Precision
ISO 3290 Grade 20
Hardness
55-60 Rockwell C
Metallic Balls - 3.175 mm 420 Stainless - ISO 3290 Grade 20 Ball
Material: Stainless Steel AISI 420C Rc 46-52    Properties: Commonly used in precision bearings. Corrosion resistant.    Colour: Silver    Specific Gravity: 7.833   
Category: Balls - Metallic - Stainless Steel - 400 Grade
Part Number: BL-00318-S420-G28 (PK-100)
205 units (20500 pcs) Available Now | Further orders can be expected around Sun, Jul 19, 2026
Regular price $10.95 AUD
Regular price Sale price $10.95 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

205 units (20500 pcs) Available Now. Backorder if more than 205.
Metallic Balls - 3.175 mm 440C Stainless - ISO 3290 Grade 20 Ball
Diameter (D)
3.175
mm
+/- 0.00254
(Equiv. 0.125 in.)
Material
440C Stainless
Precision
ISO 3290 Grade 20
Hardness
55-60 Rockwell C
Properties
Commonly used in precision bearings. Corrosion resistant.
Colour
Silver
Metallic Balls - 3.175 mm 440C Stainless - ISO 3290 Grade 20 Ball
Material: Stainless Steel AISI 440C    Specific Gravity: 7.833   
Category: Balls - Metallic - Stainless Steel - 400 Grade
Part Number: BL-00318-S440-G20 (PK-200)
5 units (1000 pcs) Available Now | Further orders can be expected around Thu, Jul 02, 2026
Regular price $4.32 AUD
Regular price Sale price $4.32 AUD
Priced, Stocked and Sold Per 200 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 5 available can be backordered.
Metallic Balls - 3.175 mm 440C Stainless - ISO 3290 Grade 20 Ball
Diameter (D)
3.175
mm
+/- 0.00254
(Equiv. 0.125 in.)
Material
440C Stainless
Precision
ISO 3290 Grade 20
Hardness
55-60 Rockwell C
Metallic Balls - 3.175 mm 440C Stainless - ISO 3290 Grade 20 Ball
Material: Stainless Steel AISI 440C    Properties: Commonly used in precision bearings. Corrosion resistant.    Colour: Silver    Specific Gravity: 7.833   
Category: Balls - Metallic - Stainless Steel - 400 Grade
Part Number: BL-00318-S440-G20 (PK-200)
5 units (1000 pcs) Available Now | Further orders can be expected around Thu, Jul 02, 2026
Regular price $4.32 AUD
Regular price Sale price $4.32 AUD
Priced, Stocked and Sold Per 200 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

5 units (1000 pcs) Available Now. Backorder if more than 5.
Metallic Balls - 3.5 mm 440C Stainless - ISO 3290 Grade 28 Ball
Diameter (D)
3.500
mm
+/- 0.00254
(Equiv. 0.138 in.)
Material
440C Stainless
Precision
ISO 3290 Grade 28
Hardness
55-60 Rockwell C
Properties
Commonly used in precision bearings. Corrosion resistant.
Colour
Silver
Metallic Balls - 3.5 mm 440C Stainless - ISO 3290 Grade 28 Ball
Material: Stainless Steel AISI 440C    Specific Gravity: 7.833   
Category: Balls - Metallic - Stainless Steel - 400 Grade
Part Number: BL-00350-S440-G28 (PK-100)
92 units (9200 pcs) Available Now | Further orders can be expected around Thu, Jul 02, 2026
Regular price $5.50 AUD
Regular price Sale price $5.50 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 92 available can be backordered.
Metallic Balls - 3.5 mm 440C Stainless - ISO 3290 Grade 28 Ball
Diameter (D)
3.500
mm
+/- 0.00254
(Equiv. 0.138 in.)
Material
440C Stainless
Precision
ISO 3290 Grade 28
Hardness
55-60 Rockwell C
Metallic Balls - 3.5 mm 440C Stainless - ISO 3290 Grade 28 Ball
Material: Stainless Steel AISI 440C    Properties: Commonly used in precision bearings. Corrosion resistant.    Colour: Silver    Specific Gravity: 7.833   
Category: Balls - Metallic - Stainless Steel - 400 Grade
Part Number: BL-00350-S440-G28 (PK-100)
92 units (9200 pcs) Available Now | Further orders can be expected around Thu, Jul 02, 2026
Regular price $5.50 AUD
Regular price Sale price $5.50 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

92 units (9200 pcs) Available Now. Backorder if more than 92.
Metallic Balls - 3.969 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
3.969
mm
+/- 0.01270
(Equiv. 0.156 in.)
Material
304 Stainless
Precision
ISO 3290 Grade 100
Hardness
25-39 Rockwell C
Properties
Low magnetic permeability. Good corrosion resistance
Colour
Silver
Metallic Balls - 3.969 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80    Specific Gravity: 7.916   
Category: Balls - Metallic - Stainless Steel - 304 Grade
Part Number: BL-00397-S4-G100 (PK-500)
Out of Stock | Backorder Now | Backorder now for delivery around Thu, Jul 02, 2026
Regular price $12.23 AUD
Regular price Sale price $12.23 AUD
Priced, Stocked and Sold Per 500 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Metallic Balls - 3.969 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
3.969
mm
+/- 0.01270
(Equiv. 0.156 in.)
Material
304 Stainless
Precision
ISO 3290 Grade 100
Hardness
25-39 Rockwell C
Metallic Balls - 3.969 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80    Properties: Low magnetic permeability. Good corrosion resistance    Colour: Silver    Specific Gravity: 7.916   
Category: Balls - Metallic - Stainless Steel - 304 Grade
Part Number: BL-00397-S4-G100 (PK-500)
Out of Stock | Backorder Now | Backorder now for delivery around Thu, Jul 02, 2026
Regular price $12.23 AUD
Regular price Sale price $12.23 AUD
Priced, Stocked and Sold Per 500 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Metallic Balls - 3.969 mm 316 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
3.969
mm
+/- 0.01270
(Equiv. 0.156 in.)
Material
316 Stainless
Precision
ISO 3290 Grade 100
Hardness
25-39 Rockwell C
Properties
Resistant to severe corrosive conditions
Colour
Silver
Metallic Balls - 3.969 mm 316 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 316 (Similar to A4 or 18-10)    Specific Gravity: 7.972   
Category: Balls - Metallic - Stainless Steel - 316 Grade
Part Number: BL-00397-S6-G100 (PK-50)
61 units (3050 pcs) Available Now | Further orders can be expected around Thu, Jul 02, 2026
Regular price $6.50 AUD
Regular price Sale price $6.50 AUD
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 61 available can be backordered.
Metallic Balls - 3.969 mm 316 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
3.969
mm
+/- 0.01270
(Equiv. 0.156 in.)
Material
316 Stainless
Precision
ISO 3290 Grade 100
Hardness
25-39 Rockwell C
Metallic Balls - 3.969 mm 316 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 316 (Similar to A4 or 18-10)    Properties: Resistant to severe corrosive conditions    Colour: Silver    Specific Gravity: 7.972   
Category: Balls - Metallic - Stainless Steel - 316 Grade
Part Number: BL-00397-S6-G100 (PK-50)
61 units (3050 pcs) Available Now | Further orders can be expected around Thu, Jul 02, 2026
Regular price $6.50 AUD
Regular price Sale price $6.50 AUD
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

61 units (3050 pcs) Available Now. Backorder if more than 61.
Metallic Balls - 3.969 mm 440C Stainless - ISO 3290 Grade 28 Ball
Diameter (D)
3.969
mm
+/- 0.00254
(Equiv. 0.156 in.)
Material
440C Stainless
Precision
ISO 3290 Grade 28
Hardness
55-60 Rockwell C
Properties
Commonly used in precision bearings. Corrosion resistant.
Colour
Silver
Metallic Balls - 3.969 mm 440C Stainless - ISO 3290 Grade 28 Ball
Material: Stainless Steel AISI 440C    Specific Gravity: 7.833   
Category: Balls - Metallic - Stainless Steel - 400 Grade
Part Number: BL-00397-S440-G28 (PK-200)
45 units (9000 pcs) Available Now | Further orders can be expected around Thu, Jul 02, 2026
Regular price $7.68 AUD
Regular price Sale price $7.68 AUD
Priced, Stocked and Sold Per 200 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 45 available can be backordered.
Metallic Balls - 3.969 mm 440C Stainless - ISO 3290 Grade 28 Ball
Diameter (D)
3.969
mm
+/- 0.00254
(Equiv. 0.156 in.)
Material
440C Stainless
Precision
ISO 3290 Grade 28
Hardness
55-60 Rockwell C
Metallic Balls - 3.969 mm 440C Stainless - ISO 3290 Grade 28 Ball
Material: Stainless Steel AISI 440C    Properties: Commonly used in precision bearings. Corrosion resistant.    Colour: Silver    Specific Gravity: 7.833   
Category: Balls - Metallic - Stainless Steel - 400 Grade
Part Number: BL-00397-S440-G28 (PK-200)
45 units (9000 pcs) Available Now | Further orders can be expected around Thu, Jul 02, 2026
Regular price $7.68 AUD
Regular price Sale price $7.68 AUD
Priced, Stocked and Sold Per 200 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

45 units (9000 pcs) Available Now. Backorder if more than 45.
Metallic Balls - 4 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
4.000
mm
+/- 0.01270
(Equiv. 0.157 in.)
Material
304 Stainless
Precision
ISO 3290 Grade 100
Hardness
25-39 Rockwell C
Properties
Low magnetic permeability. Good corrosion resistance
Colour
Silver
Metallic Balls - 4 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80    Specific Gravity: 7.916   
Category: Balls - Metallic - Stainless Steel - 304 Grade
Part Number: BL-00400-S4-G100 (PK-200)
274 units (54800 pcs) Available Now | Further orders can be expected around Thu, Jul 02, 2026
Regular price $3.68 AUD
Regular price Sale price $3.68 AUD
Priced, Stocked and Sold Per 200 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 274 available can be backordered.
Metallic Balls - 4 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
4.000
mm
+/- 0.01270
(Equiv. 0.157 in.)
Material
304 Stainless
Precision
ISO 3290 Grade 100
Hardness
25-39 Rockwell C
Metallic Balls - 4 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80    Properties: Low magnetic permeability. Good corrosion resistance    Colour: Silver    Specific Gravity: 7.916   
Category: Balls - Metallic - Stainless Steel - 304 Grade
Part Number: BL-00400-S4-G100 (PK-200)
274 units (54800 pcs) Available Now | Further orders can be expected around Thu, Jul 02, 2026
Regular price $3.68 AUD
Regular price Sale price $3.68 AUD
Priced, Stocked and Sold Per 200 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

274 units (54800 pcs) Available Now. Backorder if more than 274.
Metallic Balls - 4 mm 316 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
4.000
mm
+/- 0.01270
(Equiv. 0.157 in.)
Material
316 Stainless
Precision
ISO 3290 Grade 100
Hardness
25-39 Rockwell C
Properties
Resistant to severe corrosive conditions
Colour
Silver
Metallic Balls - 4 mm 316 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 316 (Similar to A4 or 18-10)    Specific Gravity: 7.972   
Category: Balls - Metallic - Stainless Steel - 316 Grade
Part Number: BL-00400-S6-G100 (PK-20)
452 units (9040 pcs) Available Now | Further orders can be expected around Thu, Jul 02, 2026
Regular price $1.41 AUD
Regular price Sale price $1.41 AUD
Priced, Stocked and Sold Per 20 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 452 available can be backordered.
Metallic Balls - 4 mm 316 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
4.000
mm
+/- 0.01270
(Equiv. 0.157 in.)
Material
316 Stainless
Precision
ISO 3290 Grade 100
Hardness
25-39 Rockwell C
Metallic Balls - 4 mm 316 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 316 (Similar to A4 or 18-10)    Properties: Resistant to severe corrosive conditions    Colour: Silver    Specific Gravity: 7.972   
Category: Balls - Metallic - Stainless Steel - 316 Grade
Part Number: BL-00400-S6-G100 (PK-20)
452 units (9040 pcs) Available Now | Further orders can be expected around Thu, Jul 02, 2026
Regular price $1.41 AUD
Regular price Sale price $1.41 AUD
Priced, Stocked and Sold Per 20 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

452 units (9040 pcs) Available Now. Backorder if more than 452.
Metallic Balls - 4 mm 316 Stainless - ISO 3290 Grade 200 Ball
Diameter (D)
4.000
mm
+/- 0.01270
(Equiv. 0.157 in.)
Material
316 Stainless
Precision
ISO 3290 Grade 200
Hardness
25-39 Rockwell C
Properties
Resistant to severe corrosive conditions
Colour
Silver
Metallic Balls - 4 mm 316 Stainless - ISO 3290 Grade 200 Ball
Material: Stainless Steel 316 (Similar to A4 or 18-10)    Specific Gravity: 7.972   
Category: Balls - Metallic - Stainless Steel - 316 Grade
Part Number: BL-00400-S6-G200 (PK-100)
101 units (10100 pcs) Available Now | Further orders can be expected around Thu, Jul 02, 2026
Regular price $8.14 AUD
Regular price Sale price $8.14 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 101 available can be backordered.
Metallic Balls - 4 mm 316 Stainless - ISO 3290 Grade 200 Ball
Diameter (D)
4.000
mm
+/- 0.01270
(Equiv. 0.157 in.)
Material
316 Stainless
Precision
ISO 3290 Grade 200
Hardness
25-39 Rockwell C
Metallic Balls - 4 mm 316 Stainless - ISO 3290 Grade 200 Ball
Material: Stainless Steel 316 (Similar to A4 or 18-10)    Properties: Resistant to severe corrosive conditions    Colour: Silver    Specific Gravity: 7.972   
Category: Balls - Metallic - Stainless Steel - 316 Grade
Part Number: BL-00400-S6-G200 (PK-100)
101 units (10100 pcs) Available Now | Further orders can be expected around Thu, Jul 02, 2026
Regular price $8.14 AUD
Regular price Sale price $8.14 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

101 units (10100 pcs) Available Now. Backorder if more than 101.
Metallic Balls - 4 mm 316L Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
4.000
mm
+/- 0.01270
(Equiv. 0.157 in.)
Material
316L Stainless
Precision
ISO 3290 Grade 100
Hardness
25-39 Rockwell C
Properties
Resistant to severe corrosive conditions
Colour
Silver
Metallic Balls - 4 mm 316L Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 316L    Specific Gravity: 7.972   
Category: Balls - Metallic - Stainless Steel - 316L Grade
Part Number: BL-00400-S6L-G100 (PK-20)
95 units (1900 pcs) Available Now | Further orders can be expected around Thu, Jul 02, 2026
Regular price $4.86 AUD
Regular price Sale price $4.86 AUD
Priced, Stocked and Sold Per 20 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 95 available can be backordered.
Metallic Balls - 4 mm 316L Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
4.000
mm
+/- 0.01270
(Equiv. 0.157 in.)
Material
316L Stainless
Precision
ISO 3290 Grade 100
Hardness
25-39 Rockwell C
Metallic Balls - 4 mm 316L Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 316L    Properties: Resistant to severe corrosive conditions    Colour: Silver    Specific Gravity: 7.972   
Category: Balls - Metallic - Stainless Steel - 316L Grade
Part Number: BL-00400-S6L-G100 (PK-20)
95 units (1900 pcs) Available Now | Further orders can be expected around Thu, Jul 02, 2026
Regular price $4.86 AUD
Regular price Sale price $4.86 AUD
Priced, Stocked and Sold Per 20 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

95 units (1900 pcs) Available Now. Backorder if more than 95.
Metallic Balls - 4 mm 440C Stainless - ISO 3290 Grade 16 Ball
Diameter (D)
4.000
mm
+/- 0.00254
(Equiv. 0.157 in.)
Material
440C Stainless
Precision
ISO 3290 Grade 16
Hardness
55-60 Rockwell C
Properties
Commonly used in precision bearings. Corrosion resistant.
Colour
Silver
Metallic Balls - 4 mm 440C Stainless - ISO 3290 Grade 16 Ball
Material: Stainless Steel AISI 440C    Specific Gravity: 7.833   
Category: Balls - Metallic - Stainless Steel - 400 Grade
Part Number: BL-00400-S440-G16 (PK-100)
Out of Stock | Backorder Now | Backorder now for delivery around Thu, Jul 02, 2026
Regular price $5.86 AUD
Regular price Sale price $5.86 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Metallic Balls - 4 mm 440C Stainless - ISO 3290 Grade 16 Ball
Diameter (D)
4.000
mm
+/- 0.00254
(Equiv. 0.157 in.)
Material
440C Stainless
Precision
ISO 3290 Grade 16
Hardness
55-60 Rockwell C
Metallic Balls - 4 mm 440C Stainless - ISO 3290 Grade 16 Ball
Material: Stainless Steel AISI 440C    Properties: Commonly used in precision bearings. Corrosion resistant.    Colour: Silver    Specific Gravity: 7.833   
Category: Balls - Metallic - Stainless Steel - 400 Grade
Part Number: BL-00400-S440-G16 (PK-100)
Out of Stock | Backorder Now | Backorder now for delivery around Thu, Jul 02, 2026
Regular price $5.86 AUD
Regular price Sale price $5.86 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Metallic Balls - 4.5 mm 316 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
4.500
mm
+/- 0.01270
(Equiv. 0.177 in.)
Material
316 Stainless
Precision
ISO 3290 Grade 100
Hardness
25-39 Rockwell C
Properties
Resistant to severe corrosive conditions
Colour
Silver
Metallic Balls - 4.5 mm 316 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 316 (Similar to A4 or 18-10)    Specific Gravity: 7.972   
Category: Balls - Metallic - Stainless Steel - 316 Grade
Part Number: BL-00450-S6-G100 (PK-100)
4 units (400 pcs) Available Now | More stock due: 10 (1000 pcs) around Wed, Jun 24, 2026 | Further orders can be expected around Thu, Jul 02, 2026
Regular price $5.68 AUD
Regular price Sale price $5.68 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 4 available can be backordered.
Metallic Balls - 4.5 mm 316 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
4.500
mm
+/- 0.01270
(Equiv. 0.177 in.)
Material
316 Stainless
Precision
ISO 3290 Grade 100
Hardness
25-39 Rockwell C
Metallic Balls - 4.5 mm 316 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 316 (Similar to A4 or 18-10)    Properties: Resistant to severe corrosive conditions    Colour: Silver    Specific Gravity: 7.972   
Category: Balls - Metallic - Stainless Steel - 316 Grade
Part Number: BL-00450-S6-G100 (PK-100)
4 units (400 pcs) Available Now | More stock due: 10 (1000 pcs) around Wed, Jun 24, 2026 | Further orders can be expected around Thu, Jul 02, 2026
Regular price $5.68 AUD
Regular price Sale price $5.68 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

4 units (400 pcs) Available Now. Backorder if more than 4.
Metallic Balls - 4.763 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
4.763
mm
+/- 0.01270
(Equiv. 0.188 in.)
Material
304 Stainless
Precision
ISO 3290 Grade 100
Hardness
25-39 Rockwell C
Properties
Low magnetic permeability. Good corrosion resistance
Colour
Silver
Metallic Balls - 4.763 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80    Specific Gravity: 7.916   
Category: Balls - Metallic - Stainless Steel - 304 Grade
Part Number: BL-00476-S4-G100 (PK-500)
Out of Stock | Backorder Now | Backorder now for delivery around Thu, Jul 02, 2026
Regular price $21.23 AUD
Regular price Sale price $21.23 AUD
Priced, Stocked and Sold Per 500 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Metallic Balls - 4.763 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
4.763
mm
+/- 0.01270
(Equiv. 0.188 in.)
Material
304 Stainless
Precision
ISO 3290 Grade 100
Hardness
25-39 Rockwell C
Metallic Balls - 4.763 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80    Properties: Low magnetic permeability. Good corrosion resistance    Colour: Silver    Specific Gravity: 7.916   
Category: Balls - Metallic - Stainless Steel - 304 Grade
Part Number: BL-00476-S4-G100 (PK-500)
Out of Stock | Backorder Now | Backorder now for delivery around Thu, Jul 02, 2026
Regular price $21.23 AUD
Regular price Sale price $21.23 AUD
Priced, Stocked and Sold Per 500 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Metallic Balls - 4.763 mm 316 Stainless - ISO 3290 Grade 200 Ball
Diameter (D)
4.763
mm
+/- 0.01270
(Equiv. 0.188 in.)
Material
316 Stainless
Precision
ISO 3290 Grade 200
Hardness
25-39 Rockwell C
Properties
Resistant to severe corrosive conditions
Colour
Silver
Metallic Balls - 4.763 mm 316 Stainless - ISO 3290 Grade 200 Ball
Material: Stainless Steel 316 (Similar to A4 or 18-10)    Specific Gravity: 7.972   
Category: Balls - Metallic - Stainless Steel - 316 Grade
Part Number: BL-00476-S6-G200 (PK-100)
191 units (19100 pcs) Available Now | Further orders can be expected around Thu, Jul 02, 2026
Regular price $6.50 AUD
Regular price Sale price $6.50 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 191 available can be backordered.
Metallic Balls - 4.763 mm 316 Stainless - ISO 3290 Grade 200 Ball
Diameter (D)
4.763
mm
+/- 0.01270
(Equiv. 0.188 in.)
Material
316 Stainless
Precision
ISO 3290 Grade 200
Hardness
25-39 Rockwell C
Metallic Balls - 4.763 mm 316 Stainless - ISO 3290 Grade 200 Ball
Material: Stainless Steel 316 (Similar to A4 or 18-10)    Properties: Resistant to severe corrosive conditions    Colour: Silver    Specific Gravity: 7.972   
Category: Balls - Metallic - Stainless Steel - 316 Grade
Part Number: BL-00476-S6-G200 (PK-100)
191 units (19100 pcs) Available Now | Further orders can be expected around Thu, Jul 02, 2026
Regular price $6.50 AUD
Regular price Sale price $6.50 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

191 units (19100 pcs) Available Now. Backorder if more than 191.
Metallic Balls - 4.763 mm 440C Stainless - ISO 3290 Grade 28 Ball
Diameter (D)
4.763
mm
+/- 0.00254
(Equiv. 0.188 in.)
Material
440C Stainless
Precision
ISO 3290 Grade 28
Hardness
55-60 Rockwell C
Properties
Commonly used in precision bearings. Corrosion resistant.
Colour
Silver
Metallic Balls - 4.763 mm 440C Stainless - ISO 3290 Grade 28 Ball
Material: Stainless Steel AISI 440C    Specific Gravity: 7.833   
Category: Balls - Metallic - Stainless Steel - 400 Grade
Part Number: BL-00476-S440-G28 (PK-100)
45 units (4500 pcs) Available Now | Further orders can be expected around Thu, Jul 02, 2026
Regular price $8.14 AUD
Regular price $22.93 AUD Sale price $8.14 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 45 available can be backordered.
Metallic Balls - 4.763 mm 440C Stainless - ISO 3290 Grade 28 Ball
Diameter (D)
4.763
mm
+/- 0.00254
(Equiv. 0.188 in.)
Material
440C Stainless
Precision
ISO 3290 Grade 28
Hardness
55-60 Rockwell C
Metallic Balls - 4.763 mm 440C Stainless - ISO 3290 Grade 28 Ball
Material: Stainless Steel AISI 440C    Properties: Commonly used in precision bearings. Corrosion resistant.    Colour: Silver    Specific Gravity: 7.833   
Category: Balls - Metallic - Stainless Steel - 400 Grade
Part Number: BL-00476-S440-G28 (PK-100)
45 units (4500 pcs) Available Now | Further orders can be expected around Thu, Jul 02, 2026
Regular price $8.14 AUD
Regular price $22.93 AUD Sale price $8.14 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

45 units (4500 pcs) Available Now. Backorder if more than 45.
Metallic Balls - 5 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
5.000
mm
+/- 0.01270
(Equiv. 0.197 in.)
Material
304 Stainless
Precision
ISO 3290 Grade 100
Hardness
25-39 Rockwell C
Properties
Low magnetic permeability. Good corrosion resistance
Colour
Silver
Metallic Balls - 5 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80    Specific Gravity: 7.916   
Category: Balls - Metallic - Stainless Steel - 304 Grade
Part Number: BL-00500-S4-G100 (PK-100)
159 units (15900 pcs) Available Now | Further orders can be expected around Thu, Jul 02, 2026
Regular price $4.68 AUD
Regular price Sale price $4.68 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 159 available can be backordered.
Metallic Balls - 5 mm 304 Stainless - ISO 3290 Grade 100 Ball
Diameter (D)
5.000
mm
+/- 0.01270
(Equiv. 0.197 in.)
Material
304 Stainless
Precision
ISO 3290 Grade 100
Hardness
25-39 Rockwell C
Metallic Balls - 5 mm 304 Stainless - ISO 3290 Grade 100 Ball
Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80    Properties: Low magnetic permeability. Good corrosion resistance    Colour: Silver    Specific Gravity: 7.916   
Category: Balls - Metallic - Stainless Steel - 304 Grade
Part Number: BL-00500-S4-G100 (PK-100)
159 units (15900 pcs) Available Now | Further orders can be expected around Thu, Jul 02, 2026
Regular price $4.68 AUD
Regular price Sale price $4.68 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

159 units (15900 pcs) Available Now. Backorder if more than 159.
Metallic Balls - 5 mm 316 Stainless - ISO 3290 Grade 200 Ball
Diameter (D)
5.000
mm
+/- 0.01270
(Equiv. 0.197 in.)
Material
316 Stainless
Precision
ISO 3290 Grade 200
Hardness
25-39 Rockwell C
Properties
Resistant to severe corrosive conditions
Colour
Silver
Metallic Balls - 5 mm 316 Stainless - ISO 3290 Grade 200 Ball
Material: Stainless Steel 316 (Similar to A4 or 18-10)    Specific Gravity: 7.972   
Category: Balls - Metallic - Stainless Steel - 316 Grade
Part Number: BL-00500-S6-G200 (PK-50)
264 units (13200 pcs) Available Now | Further orders can be expected around Thu, Jul 02, 2026
Regular price $3.05 AUD
Regular price Sale price $3.05 AUD
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 264 available can be backordered.
Metallic Balls - 5 mm 316 Stainless - ISO 3290 Grade 200 Ball
Diameter (D)
5.000
mm
+/- 0.01270
(Equiv. 0.197 in.)
Material
316 Stainless
Precision
ISO 3290 Grade 200
Hardness
25-39 Rockwell C
Metallic Balls - 5 mm 316 Stainless - ISO 3290 Grade 200 Ball
Material: Stainless Steel 316 (Similar to A4 or 18-10)    Properties: Resistant to severe corrosive conditions    Colour: Silver    Specific Gravity: 7.972   
Category: Balls - Metallic - Stainless Steel - 316 Grade
Part Number: BL-00500-S6-G200 (PK-50)
264 units (13200 pcs) Available Now | Further orders can be expected around Thu, Jul 02, 2026
Regular price $3.05 AUD
Regular price Sale price $3.05 AUD
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

264 units (13200 pcs) Available Now. Backorder if more than 264.