Collection: Keys - Machine - Stainless Steel

Keys -> Machine -> Stainless Steel

There are 131 products in the sub-categories of Keys - Machine - Stainless Steel. Scroll down or follow the link to Keys - Machine - Stainless Steel in the products table to see all these items combined into a handy table with filters.

Category Details

A selection of Stainless Steel Machine Keys. Form A has rounded ends. Form B has square ends. Form AB has one end rounded and one end square. DIN6885

  • An expanded range may be available on special order. Please enquire.

Miniature Bearings Australia - MBA Minibearings

Additional resources:


A more concise listing may be found in the Keys - Machine - Stainless Steel category on the Small Parts & Bearings online store.
Width (W) Height (h) Length (L) Indicative
Image
Width (W)
2.00
mm
+ 0 / - 0.036
(Equiv. 0.079 in.)
Height (h)
2.00
mm
+ 0 / - 0.036
(Equiv. 0.079 in.)
Length (L)
20.00
mm
+/ - 0.25
(Equiv. 0.787 in.)
Machine Keys - 2x2x20 mm - Stainless Steel 303 Similar to A2, 304, 18-8
Material: Stainless Steel 303 (Similar to A2, 304, 18-8)    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Part Number: K-0200-0200-2000A-3
Machine Keys - 2x2x20 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Out of Stock | Backorder Now | Orders can be expected around Sat, Sep 20, 2025
Regular price $8.23 AUD
Regular price $9.87 AUD Sale price $8.23 AUD
Each
Quantity Required

Backorder: Out of Stock.
Width (W) Height (h) Length (L) Indicative
Image
Width (W)
2.00
mm
+ 0 / - 0.036
(Equiv. 0.079 in.)
Height (h)
2.00
mm
+ 0 / - 0.036
(Equiv. 0.079 in.)
Length (L)
20.00
mm
+/ - 0.25
(Equiv. 0.787 in.)
Machine Keys - 2x2x20 mm - Stainless Steel 303 Similar to A2, 304, 18-8
Material: Stainless Steel 303 (Similar to A2, 304, 18-8)    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Part Number: K-0200-0200-2000A-3
Machine Keys - 2x2x20 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Out of Stock | Backorder Now | Orders can be expected around Sat, Sep 20, 2025
Regular price $8.23 AUD
Regular price $9.87 AUD Sale price $8.23 AUD
Each
Quantity Required

Backorder: Out of Stock.
Width (W)
2.00
mm
+ 0 / - 0.025
(Equiv. 0.079 in.)
Height (h)
2.00
mm
+ 0 / - 0.025
(Equiv. 0.079 in.)
Length (L)
20.00
mm
+/ - 0.25
(Equiv. 0.787 in.)
Machine Keys - 2x2x20 mm - Stainless Steel 316 Similar to A4, 18-10
Material: Stainless Steel 316 (Similar to A4, 18-10)    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Part Number: K-0200-0200-2000A-6
Machine Keys - 2x2x20 mm - Stainless Steel 316 Similar to A4, 18-10 Key
Out of Stock | Backorder Now | Orders can be expected around Wed, Oct 01, 2025
Regular price $44.77 AUD
Regular price $53.73 AUD Sale price $44.77 AUD
Each
Quantity Required

Backorder: Out of Stock.
Width (W)
2.00
mm
+ 0 / - 0.025
(Equiv. 0.079 in.)
Height (h)
2.00
mm
+ 0 / - 0.025
(Equiv. 0.079 in.)
Length (L)
20.00
mm
+/ - 0.25
(Equiv. 0.787 in.)
Machine Keys - 2x2x20 mm - Stainless Steel 316 Similar to A4, 18-10
Material: Stainless Steel 316 (Similar to A4, 18-10)    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Part Number: K-0200-0200-2000A-6
Machine Keys - 2x2x20 mm - Stainless Steel 316 Similar to A4, 18-10 Key
Out of Stock | Backorder Now | Orders can be expected around Wed, Oct 01, 2025
Regular price $44.77 AUD
Regular price $53.73 AUD Sale price $44.77 AUD
Each
Quantity Required

Backorder: Out of Stock.
Width (W)
2.778
mm
+/- 0.025
(Equiv. 0.109 in.)
Height (h)
2.778
mm
+/- 0.025
(Equiv. 0.109 in.)
Length (L)
6.50
mm
+/ - 0.50
(Equiv. 0.256 in.)
Machine Keys - 2.778x2.778x6.5 mm - Stainless Steel 316 Similar to A4, 18-10
Material: Stainless Steel 316 (Similar to A4, 18-10)    Finish: Plain    Tolerance Type: Unilateral    End Type: B (Square Ends)   
Part Number: K-0278-0278-0650B-6
Machine Keys - 2.778x2.778x6.5 mm - Stainless Steel 316 Similar to A4, 18-10 Key
Contact Us | Item Discontinued - Please contact us if you need a large quantity
Quantity Required

Contact Us. These are priced to quit. Please contact us for a quote if you require more.
Width (W)
2.778
mm
+/- 0.025
(Equiv. 0.109 in.)
Height (h)
2.778
mm
+/- 0.025
(Equiv. 0.109 in.)
Length (L)
6.50
mm
+/ - 0.50
(Equiv. 0.256 in.)
Machine Keys - 2.778x2.778x6.5 mm - Stainless Steel 316 Similar to A4, 18-10
Material: Stainless Steel 316 (Similar to A4, 18-10)    Finish: Plain    Tolerance Type: Unilateral    End Type: B (Square Ends)   
Part Number: K-0278-0278-0650B-6
Machine Keys - 2.778x2.778x6.5 mm - Stainless Steel 316 Similar to A4, 18-10 Key
Contact Us | Item Discontinued - Please contact us if you need a large quantity
Quantity Required

Contact Us. These are priced to quit. Please contact us for a quote if you require more.
Width (W)
3.00
mm
+ 0 / - 0.051
(Equiv. 0.118 in.)
Height (h)
3.00
mm
+ 0 / - 0.051
(Equiv. 0.118 in.)
Length (L)
10.00
mm
+/ - 0.25
(Equiv. 0.394 in.)
Machine Keys - 3x3x10 mm - Stainless Steel 303 Similar to A2, 304, 18-8
Material: Stainless Steel 303 (Similar to A2, 304, 18-8)    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Part Number: K-0300-0300-1000A-3
Machine Keys - 3x3x10 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Out of Stock | Backorder Now | Orders can be expected around Sat, Sep 20, 2025
Regular price $7.23 AUD
Regular price Sale price $7.23 AUD
Each
Quantity Required

Backorder: Out of Stock.
Width (W)
3.00
mm
+ 0 / - 0.051
(Equiv. 0.118 in.)
Height (h)
3.00
mm
+ 0 / - 0.051
(Equiv. 0.118 in.)
Length (L)
10.00
mm
+/ - 0.25
(Equiv. 0.394 in.)
Machine Keys - 3x3x10 mm - Stainless Steel 303 Similar to A2, 304, 18-8
Material: Stainless Steel 303 (Similar to A2, 304, 18-8)    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Part Number: K-0300-0300-1000A-3
Machine Keys - 3x3x10 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Out of Stock | Backorder Now | Orders can be expected around Sat, Sep 20, 2025
Regular price $7.23 AUD
Regular price Sale price $7.23 AUD
Each
Quantity Required

Backorder: Out of Stock.
Width (W)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Height (h)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Length (L)
10.00
mm
+/ - 0.25
(Equiv. 0.394 in.)
Machine Keys - 3x3x10 mm - Stainless Steel 316 Similar to A4, 18-10
Material: Stainless Steel 316 (Similar to A4, 18-10)    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Part Number: K-0300-0300-1000A-6
Machine Keys - 3x3x10 mm - Stainless Steel 316 Similar to A4, 18-10 Key
Out of Stock | Backorder Now | Orders can be expected around Wed, Oct 01, 2025
Regular price $40.23 AUD
Regular price $48.27 AUD Sale price $40.23 AUD
Each
Quantity Required

Backorder: Out of Stock.
Width (W)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Height (h)
3.00
mm
+ 0 / - 0.025
(Equiv. 0.118 in.)
Length (L)
10.00
mm
+/ - 0.25
(Equiv. 0.394 in.)
Machine Keys - 3x3x10 mm - Stainless Steel 316 Similar to A4, 18-10
Material: Stainless Steel 316 (Similar to A4, 18-10)    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Part Number: K-0300-0300-1000A-6
Machine Keys - 3x3x10 mm - Stainless Steel 316 Similar to A4, 18-10 Key
Out of Stock | Backorder Now | Orders can be expected around Wed, Oct 01, 2025
Regular price $40.23 AUD
Regular price $48.27 AUD Sale price $40.23 AUD
Each
Quantity Required

Backorder: Out of Stock.
Width (W)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Height (h)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Length (L)
6.35
mm
+/ - 0.25
(Equiv. 0.25 in.)
Machine Keys - 3.18x3.18x6.35 mm - Stainless Steel 303 Similar to A2, 304, 18-8
Material: Stainless Steel 303 (Similar to A2, 304, 18-8)    Tolerance Type: Standard Undersized    End Type: B (Square Ends)   
Part Number: K-0318-0318-0635B-3 (50 Pcs)
Machine Keys - 3.18x3.18x6.35 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Out of Stock | Backorder Now | Orders can be expected around Sat, Sep 20, 2025
Regular price $35.95 AUD
Regular price $43.15 AUD Sale price $35.95 AUD
Per 50
Quantity Required

Backorder: Out of Stock.
Width (W)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Height (h)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Length (L)
6.35
mm
+/ - 0.25
(Equiv. 0.25 in.)
Machine Keys - 3.18x3.18x6.35 mm - Stainless Steel 303 Similar to A2, 304, 18-8
Material: Stainless Steel 303 (Similar to A2, 304, 18-8)    Tolerance Type: Standard Undersized    End Type: B (Square Ends)   
Part Number: K-0318-0318-0635B-3 (50 Pcs)
Machine Keys - 3.18x3.18x6.35 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Out of Stock | Backorder Now | Orders can be expected around Sat, Sep 20, 2025
Regular price $35.95 AUD
Regular price $43.15 AUD Sale price $35.95 AUD
Per 50
Quantity Required

Backorder: Out of Stock.
Width (W)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Height (h)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Length (L)
12.70
mm
+/ - 0.25
(Equiv. 0.5 in.)
Machine Keys - 3.18x3.18x12.7 mm - Stainless Steel 303 Similar to A2, 304, 18-8
Material: Stainless Steel 303 (Similar to A2, 304, 18-8)    Tolerance Type: Standard Undersized    End Type: B (Square Ends)   
Part Number: K-0318-0318-1270B-3 (50 Pcs)
Machine Keys - 3.18x3.18x12.7 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Out of Stock | Backorder Now | Orders can be expected around Sat, Sep 20, 2025
Regular price $55.05 AUD
Regular price $66.05 AUD Sale price $55.05 AUD
Per 50
Quantity Required

Backorder: Out of Stock.
Width (W)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Height (h)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Length (L)
12.70
mm
+/ - 0.25
(Equiv. 0.5 in.)
Machine Keys - 3.18x3.18x12.7 mm - Stainless Steel 303 Similar to A2, 304, 18-8
Material: Stainless Steel 303 (Similar to A2, 304, 18-8)    Tolerance Type: Standard Undersized    End Type: B (Square Ends)   
Part Number: K-0318-0318-1270B-3 (50 Pcs)
Machine Keys - 3.18x3.18x12.7 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Out of Stock | Backorder Now | Orders can be expected around Sat, Sep 20, 2025
Regular price $55.05 AUD
Regular price $66.05 AUD Sale price $55.05 AUD
Per 50
Quantity Required

Backorder: Out of Stock.
Width (W)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Height (h)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Length (L)
15.88
mm
+/ - 0.25
(Equiv. 0.625 in.)
Machine Keys - 3.18x3.18x15.88 mm - Stainless Steel 303 Similar to A2, 304, 18-8
Material: Stainless Steel 303 (Similar to A2, 304, 18-8)    Tolerance Type: Standard Undersized    End Type: B (Square Ends)   
Part Number: K-0318-0318-1588B-3 (50 Pcs)
Machine Keys - 3.18x3.18x15.88 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Out of Stock | Backorder Now | Orders can be expected around Sat, Sep 20, 2025
Regular price $60.95 AUD
Regular price $73.15 AUD Sale price $60.95 AUD
Per 50
Quantity Required

Backorder: Out of Stock.
Width (W)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Height (h)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Length (L)
15.88
mm
+/ - 0.25
(Equiv. 0.625 in.)
Machine Keys - 3.18x3.18x15.88 mm - Stainless Steel 303 Similar to A2, 304, 18-8
Material: Stainless Steel 303 (Similar to A2, 304, 18-8)    Tolerance Type: Standard Undersized    End Type: B (Square Ends)   
Part Number: K-0318-0318-1588B-3 (50 Pcs)
Machine Keys - 3.18x3.18x15.88 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Out of Stock | Backorder Now | Orders can be expected around Sat, Sep 20, 2025
Regular price $60.95 AUD
Regular price $73.15 AUD Sale price $60.95 AUD
Per 50
Quantity Required

Backorder: Out of Stock.
Width (W)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Height (h)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Length (L)
19.05
mm
+/ - 0.25
(Equiv. 0.75 in.)
Machine Keys - 3.18x3.18x19.05 mm - Stainless Steel 303 Similar to A2, 304, 18-8
Material: Stainless Steel 303 (Similar to A2, 304, 18-8)    Tolerance Type: Standard Undersized    End Type: B (Square Ends)   
Part Number: K-0318-0318-1905B-3 (50 Pcs)
Machine Keys - 3.18x3.18x19.05 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Out of Stock | Backorder Now | Orders can be expected around Sat, Sep 20, 2025
Regular price $67.50 AUD
Regular price $81.00 AUD Sale price $67.50 AUD
Per 50
Quantity Required

Backorder: Out of Stock.
Width (W)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Height (h)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Length (L)
19.05
mm
+/ - 0.25
(Equiv. 0.75 in.)
Machine Keys - 3.18x3.18x19.05 mm - Stainless Steel 303 Similar to A2, 304, 18-8
Material: Stainless Steel 303 (Similar to A2, 304, 18-8)    Tolerance Type: Standard Undersized    End Type: B (Square Ends)   
Part Number: K-0318-0318-1905B-3 (50 Pcs)
Machine Keys - 3.18x3.18x19.05 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Out of Stock | Backorder Now | Orders can be expected around Sat, Sep 20, 2025
Regular price $67.50 AUD
Regular price $81.00 AUD Sale price $67.50 AUD
Per 50
Quantity Required

Backorder: Out of Stock.
Width (W)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Height (h)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Length (L)
22.23
mm
+/ - 0.25
(Equiv. 0.875 in.)
Machine Keys - 3.18x3.18x22.23 mm - Stainless Steel 303 Similar to A2, 304, 18-8
Material: Stainless Steel 303 (Similar to A2, 304, 18-8)    Tolerance Type: Standard Undersized    End Type: B (Square Ends)   
Part Number: K-0318-0318-2223B-3 (50 Pcs)
Machine Keys - 3.18x3.18x22.23 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
Regular price $347.41 AUD
Regular price Sale price $347.41 AUD
Per 50
Quantity Required

Backorder: Out of Stock.
Width (W)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Height (h)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Length (L)
22.23
mm
+/ - 0.25
(Equiv. 0.875 in.)
Machine Keys - 3.18x3.18x22.23 mm - Stainless Steel 303 Similar to A2, 304, 18-8
Material: Stainless Steel 303 (Similar to A2, 304, 18-8)    Tolerance Type: Standard Undersized    End Type: B (Square Ends)   
Part Number: K-0318-0318-2223B-3 (50 Pcs)
Machine Keys - 3.18x3.18x22.23 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
Regular price $347.41 AUD
Regular price Sale price $347.41 AUD
Per 50
Quantity Required

Backorder: Out of Stock.
Width (W)
3.18
mm

(Equiv. 0.125 in.)
Height (h)
3.18
mm

(Equiv. 0.125 in.)
Length (L)
25.40
mm

(Equiv. 1 in.)
Machine Keys - 3.18x3.18x25.4 mm - Stainless Steel 316 Similar to A4, 18-10
Material: Stainless Steel 316 (Similar to A4, 18-10)    Tolerance Type: Standard Undersized    End Type: B (Square Ends)   
Part Number: K-0318-0318-2540-KS6 (10 Pcs)
Machine Keys - 3.18x3.18x25.4 mm - Stainless Steel 316 Similar to A4, 18-10 Key
20 units (200 pcs) Available Now | Further orders can be expected around Sat, Sep 20, 2025
Regular price $9.59 AUD
Regular price Sale price $9.59 AUD
Per 10
Quantity Required

20 units (200 pcs) Available Now. Backorder if more than 20.
Width (W)
3.18
mm

(Equiv. 0.125 in.)
Height (h)
3.18
mm

(Equiv. 0.125 in.)
Length (L)
25.40
mm

(Equiv. 1 in.)
Machine Keys - 3.18x3.18x25.4 mm - Stainless Steel 316 Similar to A4, 18-10
Material: Stainless Steel 316 (Similar to A4, 18-10)    Tolerance Type: Standard Undersized    End Type: B (Square Ends)   
Part Number: K-0318-0318-2540-KS6 (10 Pcs)
Machine Keys - 3.18x3.18x25.4 mm - Stainless Steel 316 Similar to A4, 18-10 Key
20 units (200 pcs) Available Now | Further orders can be expected around Sat, Sep 20, 2025
Regular price $9.59 AUD
Regular price Sale price $9.59 AUD
Per 10
Quantity Required

20 units (200 pcs) Available Now. Backorder if more than 20.
Width (W)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Height (h)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Length (L)
25.40
mm
+/ - 0.25
(Equiv. 1 in.)
Machine Keys - 3.18x3.18x25.4 mm - Stainless Steel 303 Similar to A2, 304, 18-8
Material: Stainless Steel 303 (Similar to A2, 304, 18-8)    Tolerance Type: Standard Undersized    End Type: B (Square Ends)   
Part Number: K-0318-0318-2540B-3 (50 Pcs)
Machine Keys - 3.18x3.18x25.4 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Out of Stock | Backorder Now | Orders can be expected around Sat, Sep 20, 2025
Regular price $79.77 AUD
Regular price $95.73 AUD Sale price $79.77 AUD
Per 50
Quantity Required

Backorder: Out of Stock.
Width (W)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Height (h)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Length (L)
25.40
mm
+/ - 0.25
(Equiv. 1 in.)
Machine Keys - 3.18x3.18x25.4 mm - Stainless Steel 303 Similar to A2, 304, 18-8
Material: Stainless Steel 303 (Similar to A2, 304, 18-8)    Tolerance Type: Standard Undersized    End Type: B (Square Ends)   
Part Number: K-0318-0318-2540B-3 (50 Pcs)
Machine Keys - 3.18x3.18x25.4 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Out of Stock | Backorder Now | Orders can be expected around Sat, Sep 20, 2025
Regular price $79.77 AUD
Regular price $95.73 AUD Sale price $79.77 AUD
Per 50
Quantity Required

Backorder: Out of Stock.
Width (W)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Height (h)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Length (L)
31.75
mm
+/ - 0.25
(Equiv. 1.25 in.)
Machine Keys - 3.18x3.18x31.75 mm - Stainless Steel 303 Similar to A2, 304, 18-8
Material: Stainless Steel 303 (Similar to A2, 304, 18-8)    Tolerance Type: Standard Undersized    End Type: B (Square Ends)   
Part Number: K-0318-0318-3175B-3 (50 Pcs)
Machine Keys - 3.18x3.18x31.75 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Out of Stock | Backorder Now | Orders can be expected around Sat, Sep 20, 2025
Regular price $104.14 AUD
Regular price $124.96 AUD Sale price $104.14 AUD
Per 50
Quantity Required

Backorder: Out of Stock.
Width (W)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Height (h)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Length (L)
31.75
mm
+/ - 0.25
(Equiv. 1.25 in.)
Machine Keys - 3.18x3.18x31.75 mm - Stainless Steel 303 Similar to A2, 304, 18-8
Material: Stainless Steel 303 (Similar to A2, 304, 18-8)    Tolerance Type: Standard Undersized    End Type: B (Square Ends)   
Part Number: K-0318-0318-3175B-3 (50 Pcs)
Machine Keys - 3.18x3.18x31.75 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Out of Stock | Backorder Now | Orders can be expected around Sat, Sep 20, 2025
Regular price $104.14 AUD
Regular price $124.96 AUD Sale price $104.14 AUD
Per 50
Quantity Required

Backorder: Out of Stock.
Width (W)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Height (h)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Length (L)
38.10
mm
+/ - 0.25
(Equiv. 1.5 in.)
Machine Keys - 3.18x3.18x38.1 mm - Stainless Steel 303 Similar to A2, 304, 18-8
Material: Stainless Steel 303 (Similar to A2, 304, 18-8)    Tolerance Type: Standard Undersized    End Type: B (Square Ends)   
Part Number: K-0318-0318-3810B-3 (50 Pcs)
Machine Keys - 3.18x3.18x38.1 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Out of Stock | Backorder Now | Orders can be expected around Sat, Sep 20, 2025
Regular price $125.14 AUD
Regular price $150.16 AUD Sale price $125.14 AUD
Per 50
Quantity Required

Backorder: Out of Stock.
Width (W)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Height (h)
3.18
mm
+ 0 / - 0.051
(Equiv. 0.125 in.)
Length (L)
38.10
mm
+/ - 0.25
(Equiv. 1.5 in.)
Machine Keys - 3.18x3.18x38.1 mm - Stainless Steel 303 Similar to A2, 304, 18-8
Material: Stainless Steel 303 (Similar to A2, 304, 18-8)    Tolerance Type: Standard Undersized    End Type: B (Square Ends)   
Part Number: K-0318-0318-3810B-3 (50 Pcs)
Machine Keys - 3.18x3.18x38.1 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Out of Stock | Backorder Now | Orders can be expected around Sat, Sep 20, 2025
Regular price $125.14 AUD
Regular price $150.16 AUD Sale price $125.14 AUD
Per 50
Quantity Required

Backorder: Out of Stock.
Width (W)
4.00
mm
+ 0 / - 0.051
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.051
(Equiv. 0.157 in.)
Length (L)
10.00
mm
+/ - 0.25
(Equiv. 0.394 in.)
Machine Keys - 4x4x10 mm - Stainless Steel 303 Similar to A2, 304, 18-8
Material: Stainless Steel 303 (Similar to A2, 304, 18-8)    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Part Number: K-0400-0400-1000A-3 (50 Pcs)
Machine Keys - 4x4x10 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Out of Stock | Backorder Now | Orders can be expected around Wed, Oct 22, 2025
Regular price $222.77 AUD
Regular price $267.33 AUD Sale price $222.77 AUD
Per 50
Quantity Required

Backorder: Out of Stock.
Width (W)
4.00
mm
+ 0 / - 0.051
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.051
(Equiv. 0.157 in.)
Length (L)
10.00
mm
+/ - 0.25
(Equiv. 0.394 in.)
Machine Keys - 4x4x10 mm - Stainless Steel 303 Similar to A2, 304, 18-8
Material: Stainless Steel 303 (Similar to A2, 304, 18-8)    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Part Number: K-0400-0400-1000A-3 (50 Pcs)
Machine Keys - 4x4x10 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Out of Stock | Backorder Now | Orders can be expected around Wed, Oct 22, 2025
Regular price $222.77 AUD
Regular price $267.33 AUD Sale price $222.77 AUD
Per 50
Quantity Required

Backorder: Out of Stock.
Width (W)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Length (L)
10.00
mm
+/ - 0.25
(Equiv. 0.394 in.)
Machine Keys - 4x4x10 mm - Stainless Steel 316 Similar to A4, 18-10
Material: Stainless Steel 316 (Similar to A4, 18-10)    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Part Number: K-0400-0400-1000A-6
Machine Keys - 4x4x10 mm - Stainless Steel 316 Similar to A4, 18-10 Key
Out of Stock | Backorder Now | Orders can be expected around Wed, Oct 01, 2025
Regular price $32.05 AUD
Regular price $38.45 AUD Sale price $32.05 AUD
Each
Quantity Required

Backorder: Out of Stock.
Width (W)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Length (L)
10.00
mm
+/ - 0.25
(Equiv. 0.394 in.)
Machine Keys - 4x4x10 mm - Stainless Steel 316 Similar to A4, 18-10
Material: Stainless Steel 316 (Similar to A4, 18-10)    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Part Number: K-0400-0400-1000A-6
Machine Keys - 4x4x10 mm - Stainless Steel 316 Similar to A4, 18-10 Key
Out of Stock | Backorder Now | Orders can be expected around Wed, Oct 01, 2025
Regular price $32.05 AUD
Regular price $38.45 AUD Sale price $32.05 AUD
Each
Quantity Required

Backorder: Out of Stock.
Width (W)
4.00
mm
+ 0 / - 0.051
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.051
(Equiv. 0.157 in.)
Length (L)
15.00
mm
+/ - 0.25
(Equiv. 0.591 in.)
Machine Keys - 4x4x15 mm - Stainless Steel 303 Similar to A2, 304, 18-8
Material: Stainless Steel 303 (Similar to A2, 304, 18-8)    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Part Number: K-0400-0400-1500A-3
Machine Keys - 4x4x15 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Out of Stock | Backorder Now | Orders can be expected around Sat, Sep 20, 2025
Regular price $9.23 AUD
Regular price Sale price $9.23 AUD
Each
Quantity Required

Backorder: Out of Stock.
Width (W)
4.00
mm
+ 0 / - 0.051
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.051
(Equiv. 0.157 in.)
Length (L)
15.00
mm
+/ - 0.25
(Equiv. 0.591 in.)
Machine Keys - 4x4x15 mm - Stainless Steel 303 Similar to A2, 304, 18-8
Material: Stainless Steel 303 (Similar to A2, 304, 18-8)    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Part Number: K-0400-0400-1500A-3
Machine Keys - 4x4x15 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Out of Stock | Backorder Now | Orders can be expected around Sat, Sep 20, 2025
Regular price $9.23 AUD
Regular price Sale price $9.23 AUD
Each
Quantity Required

Backorder: Out of Stock.
Width (W)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Length (L)
18.00
mm
+/ - 0.25
(Equiv. 0.709 in.)
Machine Keys - 4x4x18 mm - Stainless Steel 316 Similar to A4, 18-10
Material: Stainless Steel 316 (Similar to A4, 18-10)    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Part Number: K-0400-0400-1800A-6
Machine Keys - 4x4x18 mm - Stainless Steel 316 Similar to A4, 18-10 Key
1 Available Now | Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $2.00 AUD
Regular price $3.80 AUD Sale price $2.00 AUD
Each
Quantity Required

1 Available Now. These are priced to quit. Please contact us for a quote if you require more.
Width (W)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Length (L)
18.00
mm
+/ - 0.25
(Equiv. 0.709 in.)
Machine Keys - 4x4x18 mm - Stainless Steel 316 Similar to A4, 18-10
Material: Stainless Steel 316 (Similar to A4, 18-10)    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Part Number: K-0400-0400-1800A-6
Machine Keys - 4x4x18 mm - Stainless Steel 316 Similar to A4, 18-10 Key
1 Available Now | Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $2.00 AUD
Regular price $3.80 AUD Sale price $2.00 AUD
Each
Quantity Required

1 Available Now. These are priced to quit. Please contact us for a quote if you require more.
Width (W)
4.00
mm
+ 0 / - 0.051
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.051
(Equiv. 0.157 in.)
Length (L)
20.00
mm
+/ - 0.25
(Equiv. 0.787 in.)
Machine Keys - 4x4x20 mm - Stainless Steel 303 Similar to A2, 304, 18-8
Material: Stainless Steel 303 (Similar to A2, 304, 18-8)    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Part Number: K-0400-0400-2000A-3
Machine Keys - 4x4x20 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Out of Stock | Backorder Now | Orders can be expected around Sat, Sep 20, 2025
Regular price $7.59 AUD
Regular price Sale price $7.59 AUD
Each
Quantity Required

Backorder: Out of Stock.
Width (W)
4.00
mm
+ 0 / - 0.051
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.051
(Equiv. 0.157 in.)
Length (L)
20.00
mm
+/ - 0.25
(Equiv. 0.787 in.)
Machine Keys - 4x4x20 mm - Stainless Steel 303 Similar to A2, 304, 18-8
Material: Stainless Steel 303 (Similar to A2, 304, 18-8)    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Part Number: K-0400-0400-2000A-3
Machine Keys - 4x4x20 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Out of Stock | Backorder Now | Orders can be expected around Sat, Sep 20, 2025
Regular price $7.59 AUD
Regular price Sale price $7.59 AUD
Each
Quantity Required

Backorder: Out of Stock.
Width (W)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Length (L)
20.00
mm
+/ - 0.25
(Equiv. 0.787 in.)
Machine Keys - 4x4x20 mm - Stainless Steel 316 Similar to A4, 18-10
Material: Stainless Steel 316 (Similar to A4, 18-10)    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Part Number: K-0400-0400-2000A-6
Machine Keys - 4x4x20 mm - Stainless Steel 316 Similar to A4, 18-10 Key
Out of Stock | Backorder Now | Orders can be expected around Wed, Oct 01, 2025
Regular price $30.41 AUD
Regular price $36.49 AUD Sale price $30.41 AUD
Each
Quantity Required

Backorder: Out of Stock.
Width (W)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Length (L)
20.00
mm
+/ - 0.25
(Equiv. 0.787 in.)
Machine Keys - 4x4x20 mm - Stainless Steel 316 Similar to A4, 18-10
Material: Stainless Steel 316 (Similar to A4, 18-10)    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Part Number: K-0400-0400-2000A-6
Machine Keys - 4x4x20 mm - Stainless Steel 316 Similar to A4, 18-10 Key
Out of Stock | Backorder Now | Orders can be expected around Wed, Oct 01, 2025
Regular price $30.41 AUD
Regular price $36.49 AUD Sale price $30.41 AUD
Each
Quantity Required

Backorder: Out of Stock.
Width (W)
4.00
mm
+ 0 / - 0.051
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.051
(Equiv. 0.157 in.)
Length (L)
25.00
mm
+/ - 0.25
(Equiv. 0.984 in.)
Machine Keys - 4x4x25 mm - Stainless Steel 303 Similar to A2, 304, 18-8
Material: Stainless Steel 303 (Similar to A2, 304, 18-8)    Tolerance Type: Standard Undersized    End Type: B (Square Ends)   
Part Number: K-0400-0400-2500B-3 (50 Pcs)
Machine Keys - 4x4x25 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Out of Stock | Backorder Now | Orders can be expected around Sat, Sep 20, 2025
Regular price $133.32 AUD
Regular price $159.98 AUD Sale price $133.32 AUD
Per 50
Quantity Required

Backorder: Out of Stock.
Width (W)
4.00
mm
+ 0 / - 0.051
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.051
(Equiv. 0.157 in.)
Length (L)
25.00
mm
+/ - 0.25
(Equiv. 0.984 in.)
Machine Keys - 4x4x25 mm - Stainless Steel 303 Similar to A2, 304, 18-8
Material: Stainless Steel 303 (Similar to A2, 304, 18-8)    Tolerance Type: Standard Undersized    End Type: B (Square Ends)   
Part Number: K-0400-0400-2500B-3 (50 Pcs)
Machine Keys - 4x4x25 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Out of Stock | Backorder Now | Orders can be expected around Sat, Sep 20, 2025
Regular price $133.32 AUD
Regular price $159.98 AUD Sale price $133.32 AUD
Per 50
Quantity Required

Backorder: Out of Stock.
Width (W)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Length (L)
25.00
mm
+/ - 0.25
(Equiv. 0.984 in.)
Machine Keys - 4x4x25 mm - Stainless Steel 316 Similar to A4, 18-10
Material: Stainless Steel 316 (Similar to A4, 18-10)    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Part Number: K-0400-0400-2500A-6
Machine Keys - 4x4x25 mm - Stainless Steel 316 Similar to A4, 18-10 Key
Contact Us | Item Discontinued - Please contact us if you need a large quantity
Quantity Required

Contact Us. These are priced to quit. Please contact us for a quote if you require more.
Width (W)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Length (L)
25.00
mm
+/ - 0.25
(Equiv. 0.984 in.)
Machine Keys - 4x4x25 mm - Stainless Steel 316 Similar to A4, 18-10
Material: Stainless Steel 316 (Similar to A4, 18-10)    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Part Number: K-0400-0400-2500A-6
Machine Keys - 4x4x25 mm - Stainless Steel 316 Similar to A4, 18-10 Key
Contact Us | Item Discontinued - Please contact us if you need a large quantity
Quantity Required

Contact Us. These are priced to quit. Please contact us for a quote if you require more.
Width (W)
4.76
mm
+ 0 / - 0.051
(Equiv. 0.187 in.)
Height (h)
4.76
mm
+ 0 / - 0.051
(Equiv. 0.187 in.)
Length (L)
12.70
mm
+/ - 0.25
(Equiv. 0.5 in.)
Machine Keys - 4.76x4.76x12.7 mm - Stainless Steel 303 Similar to A2, 304, 18-8
Material: Stainless Steel 303 (Similar to A2, 304, 18-8)    Tolerance Type: Standard Undersized    End Type: B (Square Ends)   
Part Number: K-0476-0476-1270B-3 (50 Pcs)
Machine Keys - 4.76x4.76x12.7 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Out of Stock | Backorder Now | Orders can be expected around Sat, Sep 20, 2025
Regular price $21.14 AUD
Regular price $25.36 AUD Sale price $21.14 AUD
Per 50
Quantity Required

Backorder: Out of Stock.
Width (W)
4.76
mm
+ 0 / - 0.051
(Equiv. 0.187 in.)
Height (h)
4.76
mm
+ 0 / - 0.051
(Equiv. 0.187 in.)
Length (L)
12.70
mm
+/ - 0.25
(Equiv. 0.5 in.)
Machine Keys - 4.76x4.76x12.7 mm - Stainless Steel 303 Similar to A2, 304, 18-8
Material: Stainless Steel 303 (Similar to A2, 304, 18-8)    Tolerance Type: Standard Undersized    End Type: B (Square Ends)   
Part Number: K-0476-0476-1270B-3 (50 Pcs)
Machine Keys - 4.76x4.76x12.7 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Out of Stock | Backorder Now | Orders can be expected around Sat, Sep 20, 2025
Regular price $21.14 AUD
Regular price $25.36 AUD Sale price $21.14 AUD
Per 50
Quantity Required

Backorder: Out of Stock.
Width (W)
4.76
mm
+ 0 / - 0.051
(Equiv. 0.187 in.)
Height (h)
4.76
mm
+ 0 / - 0.051
(Equiv. 0.187 in.)
Length (L)
15.88
mm
+/ - 0.25
(Equiv. 0.625 in.)
Machine Keys - 4.76x4.76x15.88 mm - Stainless Steel 303 Similar to A2, 304, 18-8
Material: Stainless Steel 303 (Similar to A2, 304, 18-8)    Tolerance Type: Standard Undersized    End Type: B (Square Ends)   
Part Number: K-0476-0476-1588B-3 (50 Pcs)
Machine Keys - 4.76x4.76x15.88 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Out of Stock | Backorder Now | Orders can be expected around Sat, Sep 20, 2025
Regular price $34.50 AUD
Regular price $41.40 AUD Sale price $34.50 AUD
Per 50
Quantity Required

Backorder: Out of Stock.
Width (W)
4.76
mm
+ 0 / - 0.051
(Equiv. 0.187 in.)
Height (h)
4.76
mm
+ 0 / - 0.051
(Equiv. 0.187 in.)
Length (L)
15.88
mm
+/ - 0.25
(Equiv. 0.625 in.)
Machine Keys - 4.76x4.76x15.88 mm - Stainless Steel 303 Similar to A2, 304, 18-8
Material: Stainless Steel 303 (Similar to A2, 304, 18-8)    Tolerance Type: Standard Undersized    End Type: B (Square Ends)   
Part Number: K-0476-0476-1588B-3 (50 Pcs)
Machine Keys - 4.76x4.76x15.88 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Out of Stock | Backorder Now | Orders can be expected around Sat, Sep 20, 2025
Regular price $34.50 AUD
Regular price $41.40 AUD Sale price $34.50 AUD
Per 50
Quantity Required

Backorder: Out of Stock.