Collection: Screws - Countersunk

Screws -> Countersunk
Thread Size (C) Overall Length (L) Material Max Head Diameter Max Head Height Indicative
Image
Countersunk Screws - 6BA - 2.794mm - 19.1 mm - Zinc Plated Slotted Screw
Thread Size (C)
6BA (2.794mm)
Overall Length (L)
19.1
mm
Material
Zinc Plated
Max Head Diameter
5.4
mm
Max Head Height
1.3
mm
Countersunk Screws - 6BA - 2.794mm - 19.1 mm - Zinc Plated Slotted
Material: Steel Zinc Plated    Type: Countersunk / Slotted   
Category: Screws - Countersunk - Slotted
Part Number: SK028B-019-SL-CZ (PK-200)
Out of Stock | Backorder Now | Backorder now for delivery around Wed, Aug 05, 2026
Regular price $86.14 AUD
Regular price $103.36 AUD Sale price $86.14 AUD
Priced, Stocked and Sold Per 200 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Thread Size (C) Overall Length (L) Material Max Head Diameter Indicative
Image
Countersunk Screws - 6BA - 2.794mm - 19.1 mm - Zinc Plated Slotted Screw
Thread Size (C)
6BA (2.794mm)
Overall Length (L)
19.1
mm
Material
Zinc Plated
Max Head Diameter
5.4
mm
Countersunk Screws - 6BA - 2.794mm - 19.1 mm - Zinc Plated Slotted
Material: Steel Zinc Plated    Max Head Height: 1.3 mm    Type: Countersunk / Slotted   
Category: Screws - Countersunk - Slotted
Part Number: SK028B-019-SL-CZ (PK-200)
Out of Stock | Backorder Now | Backorder now for delivery around Wed, Aug 05, 2026
Regular price $86.14 AUD
Regular price $103.36 AUD Sale price $86.14 AUD
Priced, Stocked and Sold Per 200 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 6BA - 2.794mm - 25.4 mm - Zinc Plated Slotted Screw
Thread Size (C)
6BA (2.794mm)
Overall Length (L)
25.4
mm
Material
Zinc Plated
Max Head Diameter
5.4
mm
Max Head Height
1.3
mm
Countersunk Screws - 6BA - 2.794mm - 25.4 mm - Zinc Plated Slotted
Material: Steel Zinc Plated    Type: Countersunk / Slotted   
Category: Screws - Countersunk - Slotted
Part Number: SK028B-025-SL-CZ (PK-100)
Out of Stock | Backorder Now | Backorder now for delivery around Wed, Aug 05, 2026
Regular price $26.32 AUD
Regular price $31.58 AUD Sale price $26.32 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 6BA - 2.794mm - 25.4 mm - Zinc Plated Slotted Screw
Thread Size (C)
6BA (2.794mm)
Overall Length (L)
25.4
mm
Material
Zinc Plated
Max Head Diameter
5.4
mm
Countersunk Screws - 6BA - 2.794mm - 25.4 mm - Zinc Plated Slotted
Material: Steel Zinc Plated    Max Head Height: 1.3 mm    Type: Countersunk / Slotted   
Category: Screws - Countersunk - Slotted
Part Number: SK028B-025-SL-CZ (PK-100)
Out of Stock | Backorder Now | Backorder now for delivery around Wed, Aug 05, 2026
Regular price $26.32 AUD
Regular price $31.58 AUD Sale price $26.32 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 6BA - 2.794mm - 38.1 mm - Zinc Plated Slotted Screw
Thread Size (C)
6BA (2.794mm)
Overall Length (L)
38.1
mm
Material
Zinc Plated
Max Head Diameter
5.4
mm
Max Head Height
1.3
mm
Countersunk Screws - 6BA - 2.794mm - 38.1 mm - Zinc Plated Slotted
Material: Steel Zinc Plated    Type: Countersunk / Slotted   
Category: Screws - Countersunk - Slotted
Part Number: SK028B-038-SL-CZ (PK-200)
Out of Stock | Backorder Now | Backorder now for delivery around Wed, Aug 05, 2026
Regular price $121.86 AUD
Regular price $146.24 AUD Sale price $121.86 AUD
Priced, Stocked and Sold Per 200 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 6BA - 2.794mm - 38.1 mm - Zinc Plated Slotted Screw
Thread Size (C)
6BA (2.794mm)
Overall Length (L)
38.1
mm
Material
Zinc Plated
Max Head Diameter
5.4
mm
Countersunk Screws - 6BA - 2.794mm - 38.1 mm - Zinc Plated Slotted
Material: Steel Zinc Plated    Max Head Height: 1.3 mm    Type: Countersunk / Slotted   
Category: Screws - Countersunk - Slotted
Part Number: SK028B-038-SL-CZ (PK-200)
Out of Stock | Backorder Now | Backorder now for delivery around Wed, Aug 05, 2026
Regular price $121.86 AUD
Regular price $146.24 AUD Sale price $121.86 AUD
Priced, Stocked and Sold Per 200 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 4-40 UNC - 2.85mm - 4.8 mm - 304 Stainless Phillips Screw
Thread Size (C)
4-40 UNC (2.85mm)
Overall Length (L)
4.8
mm
Material
304 Stainless
Max Head Diameter
5.38
mm
Max Head Height
1.70
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 4.8 mm - 304 Stainless Phillips
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Type: Countersunk / Philips   
Category: Screws - Countersunk - Phillips
Part Number: SK028C-005-PH-S4 (PK-100)
Out of Stock | Backorder Now | Backorder now for delivery around Fri, Jun 19, 2026
Regular price $12.68 AUD
Regular price Sale price $12.68 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 4-40 UNC - 2.85mm - 4.8 mm - 304 Stainless Phillips Screw
Thread Size (C)
4-40 UNC (2.85mm)
Overall Length (L)
4.8
mm
Material
304 Stainless
Max Head Diameter
5.38
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 4.8 mm - 304 Stainless Phillips
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Max Head Height: 1.70 mm    Type: Countersunk / Philips   
Category: Screws - Countersunk - Phillips
Part Number: SK028C-005-PH-S4 (PK-100)
Out of Stock | Backorder Now | Backorder now for delivery around Fri, Jun 19, 2026
Regular price $12.68 AUD
Regular price Sale price $12.68 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 4-40 UNC - 2.85mm - 4.8 mm - 304 Stainless Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)
Overall Length (L)
4.8
mm
+ 0.0 / - 0.76
(Equiv. 0.189 in.)
Material
304 Stainless
Max Head Diameter
6.5
mm
Max Head Height
2.1
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 4.8 mm - 304 Stainless Socket
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Type: 1.59 (1/16)   
Category: Screws - Countersunk - Socket
Part Number: SK028C-005-SK-S4 (PK-50)
1 pack (50 pcs) Available Now | Further orders can be expected around Fri, Jun 19, 2026
Regular price $3.05 AUD
Regular price $5.61 AUD Sale price $3.05 AUD
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 1 available can be backordered.
Countersunk Screws - 4-40 UNC - 2.85mm - 4.8 mm - 304 Stainless Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)
Overall Length (L)
4.8
mm
+ 0.0 / - 0.76
(Equiv. 0.189 in.)
Material
304 Stainless
Max Head Diameter
6.5
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 4.8 mm - 304 Stainless Socket
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Max Head Height: 2.1 mm    Type: 1.59 (1/16)   
Category: Screws - Countersunk - Socket
Part Number: SK028C-005-SK-S4 (PK-50)
1 pack (50 pcs) Available Now | Further orders can be expected around Fri, Jun 19, 2026
Regular price $3.05 AUD
Regular price $5.61 AUD Sale price $3.05 AUD
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

1 pack (50 pcs) Available Now. Backorder if more than 1.
Countersunk Screws - 4-40 UNC - 2.85mm - 4.8 mm - High Tensile Steel / Black Oxide Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)
Overall Length (L)
4.8
mm
+ 0.0 / - 0.76
(Equiv. 0.189 in.)
Material
High Tensile Steel / Black Oxide
Max Head Diameter
6.5
mm
Max Head Height
2.1
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 4.8 mm - High Tensile Steel / Black Oxide Socket
Material: High Tensile Steel Black Oxide    Type: 1.59 (1/16)   
Category: Screws - Countersunk - Socket
Part Number: SK028C-005-SK-C (PK-100)
Out of Stock | Backorder Now | Backorder now for delivery around Fri, Jun 19, 2026
Regular price $52.41 AUD
Regular price Sale price $52.41 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 4-40 UNC - 2.85mm - 4.8 mm - High Tensile Steel / Black Oxide Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)
Overall Length (L)
4.8
mm
+ 0.0 / - 0.76
(Equiv. 0.189 in.)
Material
High Tensile Steel / Black Oxide
Max Head Diameter
6.5
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 4.8 mm - High Tensile Steel / Black Oxide Socket
Material: High Tensile Steel Black Oxide    Max Head Height: 2.1 mm    Type: 1.59 (1/16)   
Category: Screws - Countersunk - Socket
Part Number: SK028C-005-SK-C (PK-100)
Out of Stock | Backorder Now | Backorder now for delivery around Fri, Jun 19, 2026
Regular price $52.41 AUD
Regular price Sale price $52.41 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 4-40 UNC - 2.85mm - 4.8 mm - Nylon - Zytel 101 - Slotted Screw
Thread Size (C)
4-40 UNC (2.85mm)
Overall Length (L)
4.8
mm
Material
Nylon (Zytel 101)
Max Head Diameter
5.38
mm
Max Head Height
1.70
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 4.8 mm - Nylon - Zytel 101 - Slotted
Material: Nylon (Polyamide 6/6)    Type: Countersunk / Slotted   
Category: Screws - Countersunk - Slotted
Deleted Item. Available while stocks last.
Part Number: SK028C-005-SL-N (PK-10)
7 units (70 pcs) Available Now | Item Discontinued - Up to 7 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $8.00 AUD
Regular price $15.20 AUD Sale price $8.00 AUD
Priced, Stocked and Sold Per 10 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

7 units (70 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Countersunk Screws - 4-40 UNC - 2.85mm - 4.8 mm - Nylon - Zytel 101 - Slotted Screw
Thread Size (C)
4-40 UNC (2.85mm)
Overall Length (L)
4.8
mm
Material
Nylon (Zytel 101)
Max Head Diameter
5.38
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 4.8 mm - Nylon - Zytel 101 - Slotted
Material: Nylon (Polyamide 6/6)    Max Head Height: 1.70 mm    Type: Countersunk / Slotted   
Category: Screws - Countersunk - Slotted
Deleted Item. Available while stocks last.
Part Number: SK028C-005-SL-N (PK-10)
7 units (70 pcs) Available Now | Item Discontinued - Up to 7 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $8.00 AUD
Regular price $15.20 AUD Sale price $8.00 AUD
Priced, Stocked and Sold Per 10 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

7 units (70 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Countersunk Screws - 4-40 UNC - 2.85mm - 6.4 mm - 304 Stainless Phillips Screw
Thread Size (C)
4-40 UNC (2.85mm)
Overall Length (L)
6.4
mm
Material
304 Stainless
Max Head Diameter
5.38
mm
Max Head Height
1.70
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 6.4 mm - 304 Stainless Phillips
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Type: Countersunk / Philips   
Category: Screws - Countersunk - Phillips
Part Number: SK028C-006-PH-S4 (PK-100)
Out of Stock | Backorder Now | Backorder now for delivery around Fri, Jun 19, 2026
Regular price $8.59 AUD
Regular price Sale price $8.59 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 4-40 UNC - 2.85mm - 6.4 mm - 304 Stainless Phillips Screw
Thread Size (C)
4-40 UNC (2.85mm)
Overall Length (L)
6.4
mm
Material
304 Stainless
Max Head Diameter
5.38
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 6.4 mm - 304 Stainless Phillips
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Max Head Height: 1.70 mm    Type: Countersunk / Philips   
Category: Screws - Countersunk - Phillips
Part Number: SK028C-006-PH-S4 (PK-100)
Out of Stock | Backorder Now | Backorder now for delivery around Fri, Jun 19, 2026
Regular price $8.59 AUD
Regular price Sale price $8.59 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 4-40 UNC - 2.85mm - 6.4 mm - 304 Stainless Slotted Screw
Thread Size (C)
4-40 UNC (2.85mm)
Overall Length (L)
6.4
mm
Material
304 Stainless
Max Head Diameter
5.38
mm
Max Head Height
1.70
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 6.4 mm - 304 Stainless Slotted
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Type: Countersunk / Slotted   
Category: Screws - Countersunk - Slotted
Deleted Item. Available while stocks last.
Part Number: SK028C-006-SL-S4 (PK-50)
1 pack (50 pcs) Available Now | Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $10.40 AUD
Regular price $19.76 AUD Sale price $10.40 AUD
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

1 pack (50 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Countersunk Screws - 4-40 UNC - 2.85mm - 6.4 mm - 304 Stainless Slotted Screw
Thread Size (C)
4-40 UNC (2.85mm)
Overall Length (L)
6.4
mm
Material
304 Stainless
Max Head Diameter
5.38
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 6.4 mm - 304 Stainless Slotted
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Max Head Height: 1.70 mm    Type: Countersunk / Slotted   
Category: Screws - Countersunk - Slotted
Deleted Item. Available while stocks last.
Part Number: SK028C-006-SL-S4 (PK-50)
1 pack (50 pcs) Available Now | Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $10.40 AUD
Regular price $19.76 AUD Sale price $10.40 AUD
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

1 pack (50 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Countersunk Screws - 4-40 UNC - 2.85mm - 6.4 mm - 304 Stainless Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)
Overall Length (L)
6.4
mm
+ 0.0 / - 0.76
(Equiv. 0.252 in.)
Material
304 Stainless
Max Head Diameter
6.5
mm
Max Head Height
2.1
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 6.4 mm - 304 Stainless Socket
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Type: 1.59 (1/16)   
Category: Screws - Countersunk - Socket
Part Number: SK028C-006-SK-S4 (PK-50)
5 units (250 pcs) Available Now | Further orders can be expected around Fri, Jun 19, 2026
Regular price $3.14 AUD
Regular price $5.87 AUD Sale price $3.14 AUD
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 5 available can be backordered.
Countersunk Screws - 4-40 UNC - 2.85mm - 6.4 mm - 304 Stainless Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)
Overall Length (L)
6.4
mm
+ 0.0 / - 0.76
(Equiv. 0.252 in.)
Material
304 Stainless
Max Head Diameter
6.5
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 6.4 mm - 304 Stainless Socket
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Max Head Height: 2.1 mm    Type: 1.59 (1/16)   
Category: Screws - Countersunk - Socket
Part Number: SK028C-006-SK-S4 (PK-50)
5 units (250 pcs) Available Now | Further orders can be expected around Fri, Jun 19, 2026
Regular price $3.14 AUD
Regular price $5.87 AUD Sale price $3.14 AUD
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

5 units (250 pcs) Available Now. Backorder if more than 5.
Countersunk Screws - 4-40 UNC - 2.85mm - 6.4 mm - High Tensile Steel / Black Oxide Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)
Overall Length (L)
6.4
mm
+ 0.0 / - 0.76
(Equiv. 0.252 in.)
Material
High Tensile Steel / Black Oxide
Max Head Diameter
6.5
mm
Max Head Height
2.1
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 6.4 mm - High Tensile Steel / Black Oxide Socket
Material: High Tensile Steel Black Oxide    Type: 1.59 (1/16)   
Category: Screws - Countersunk - Socket
Part Number: SK028C-006-SK-C (PK-100)
Out of Stock | Backorder Now | Backorder now for delivery around Fri, Jun 19, 2026
Regular price $26.23 AUD
Regular price Sale price $26.23 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 4-40 UNC - 2.85mm - 6.4 mm - High Tensile Steel / Black Oxide Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)
Overall Length (L)
6.4
mm
+ 0.0 / - 0.76
(Equiv. 0.252 in.)
Material
High Tensile Steel / Black Oxide
Max Head Diameter
6.5
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 6.4 mm - High Tensile Steel / Black Oxide Socket
Material: High Tensile Steel Black Oxide    Max Head Height: 2.1 mm    Type: 1.59 (1/16)   
Category: Screws - Countersunk - Socket
Part Number: SK028C-006-SK-C (PK-100)
Out of Stock | Backorder Now | Backorder now for delivery around Fri, Jun 19, 2026
Regular price $26.23 AUD
Regular price Sale price $26.23 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 4-40 UNC - 2.85mm - 7.9 mm - 304 Stainless Phillips Screw
Thread Size (C)
4-40 UNC (2.85mm)
Overall Length (L)
7.9
mm
Material
304 Stainless
Max Head Diameter
5.38
mm
Max Head Height
1.70
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 7.9 mm - 304 Stainless Phillips
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Type: Countersunk / Philips   
Category: Screws - Countersunk - Phillips
Part Number: SK028C-007-PH-S4 (PK-100)
Out of Stock | Backorder Now | Backorder now for delivery around Fri, Jun 19, 2026
Regular price $9.86 AUD
Regular price Sale price $9.86 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 4-40 UNC - 2.85mm - 7.9 mm - 304 Stainless Phillips Screw
Thread Size (C)
4-40 UNC (2.85mm)
Overall Length (L)
7.9
mm
Material
304 Stainless
Max Head Diameter
5.38
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 7.9 mm - 304 Stainless Phillips
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Max Head Height: 1.70 mm    Type: Countersunk / Philips   
Category: Screws - Countersunk - Phillips
Part Number: SK028C-007-PH-S4 (PK-100)
Out of Stock | Backorder Now | Backorder now for delivery around Fri, Jun 19, 2026
Regular price $9.86 AUD
Regular price Sale price $9.86 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 4-40 UNC - 2.85mm - 7.9 mm - 304 Stainless Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)
Overall Length (L)
7.9
mm
+ 0.0 / - 0.76
(Equiv. 0.311 in.)
Material
304 Stainless
Max Head Diameter
6.5
mm
Max Head Height
2.1
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 7.9 mm - 304 Stainless Socket
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Type: 1.59 (1/16)   
Category: Screws - Countersunk - Socket
Part Number: SK028C-007-SK-S4 (PK-20)
8 units (160 pcs) Available Now | Further orders can be expected around Fri, Jun 19, 2026
Regular price $2.59 AUD
Regular price $4.81 AUD Sale price $2.59 AUD
Priced, Stocked and Sold Per 20 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 8 available can be backordered.
Countersunk Screws - 4-40 UNC - 2.85mm - 7.9 mm - 304 Stainless Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)
Overall Length (L)
7.9
mm
+ 0.0 / - 0.76
(Equiv. 0.311 in.)
Material
304 Stainless
Max Head Diameter
6.5
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 7.9 mm - 304 Stainless Socket
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Max Head Height: 2.1 mm    Type: 1.59 (1/16)   
Category: Screws - Countersunk - Socket
Part Number: SK028C-007-SK-S4 (PK-20)
8 units (160 pcs) Available Now | Further orders can be expected around Fri, Jun 19, 2026
Regular price $2.59 AUD
Regular price $4.81 AUD Sale price $2.59 AUD
Priced, Stocked and Sold Per 20 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

8 units (160 pcs) Available Now. Backorder if more than 8.
Countersunk Screws - 4-40 UNC - 2.85mm - 6.4 mm - Zinc Plated Phillips Screw
Thread Size (C)
4-40 UNC (2.85mm)
Overall Length (L)
6.4
mm
Material
Zinc Plated
Max Head Diameter
5.38
mm
Max Head Height
2.1
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 6.4 mm - Zinc Plated Phillips
Material: Steel Zinc Plated    Type: Countersunk / Philips   
Category: Screws - Countersunk - Phillips
Part Number: SK028C-006-PH-CZ (PK-100)
Out of Stock | Backorder Now | Backorder now for delivery around Wed, Aug 05, 2026
Regular price $29.41 AUD
Regular price Sale price $29.41 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 4-40 UNC - 2.85mm - 6.4 mm - Zinc Plated Phillips Screw
Thread Size (C)
4-40 UNC (2.85mm)
Overall Length (L)
6.4
mm
Material
Zinc Plated
Max Head Diameter
5.38
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 6.4 mm - Zinc Plated Phillips
Material: Steel Zinc Plated    Max Head Height: 2.1 mm    Type: Countersunk / Philips   
Category: Screws - Countersunk - Phillips
Part Number: SK028C-006-PH-CZ (PK-100)
Out of Stock | Backorder Now | Backorder now for delivery around Wed, Aug 05, 2026
Regular price $29.41 AUD
Regular price Sale price $29.41 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 4-40 UNC - 2.85mm - 7.9 mm - High Tensile Steel / Black Oxide Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)
Overall Length (L)
7.9
mm
+ 0.0 / - 0.76
(Equiv. 0.311 in.)
Material
High Tensile Steel / Black Oxide
Max Head Diameter
6.5
mm
Max Head Height
2.1
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 7.9 mm - High Tensile Steel / Black Oxide Socket
Material: High Tensile Steel Black Oxide    Type: 1.59 (1/16)   
Category: Screws - Countersunk - Socket
high Tensile
Part Number: SK028C-007-SK-C (PK-10)
8 units (80 pcs) Available Now | Further orders can be expected around Fri, Jun 19, 2026
Regular price $5.05 AUD
Regular price Sale price $5.05 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.
Countersunk Screws - 4-40 UNC - 2.85mm - 7.9 mm - High Tensile Steel / Black Oxide Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)
Overall Length (L)
7.9
mm
+ 0.0 / - 0.76
(Equiv. 0.311 in.)
Material
High Tensile Steel / Black Oxide
Max Head Diameter
6.5
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 7.9 mm - High Tensile Steel / Black Oxide Socket
Material: High Tensile Steel Black Oxide    Max Head Height: 2.1 mm    Type: 1.59 (1/16)   
Category: Screws - Countersunk - Socket
high Tensile
Part Number: SK028C-007-SK-C (PK-10)
8 units (80 pcs) Available Now | Further orders can be expected around Fri, Jun 19, 2026
Regular price $5.05 AUD
Regular price Sale price $5.05 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.
Countersunk Screws - 4-40 UNC - 2.85mm - 9.5 mm - 304 Stainless Phillips Screw
Thread Size (C)
4-40 UNC (2.85mm)
Overall Length (L)
9.5
mm
Material
304 Stainless
Max Head Diameter
5.38
mm
Max Head Height
1.70
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 9.5 mm - 304 Stainless Phillips
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Type: Countersunk / Philips   
Category: Screws - Countersunk - Phillips
Part Number: SK028C-010-PH-S4 (PK-100)
3 units (300 pcs) Available Now | Further orders can be expected around Fri, Jun 19, 2026
Regular price $4.59 AUD
Regular price $8.54 AUD Sale price $4.59 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 3 available can be backordered.
Countersunk Screws - 4-40 UNC - 2.85mm - 9.5 mm - 304 Stainless Phillips Screw
Thread Size (C)
4-40 UNC (2.85mm)
Overall Length (L)
9.5
mm
Material
304 Stainless
Max Head Diameter
5.38
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 9.5 mm - 304 Stainless Phillips
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Max Head Height: 1.70 mm    Type: Countersunk / Philips   
Category: Screws - Countersunk - Phillips
Part Number: SK028C-010-PH-S4 (PK-100)
3 units (300 pcs) Available Now | Further orders can be expected around Fri, Jun 19, 2026
Regular price $4.59 AUD
Regular price $8.54 AUD Sale price $4.59 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

3 units (300 pcs) Available Now. Backorder if more than 3.
Countersunk Screws - 4-40 UNC - 2.85mm - 9.5 mm - 304 Stainless Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)
Overall Length (L)
9.5
mm
+ 0.0 / - 0.76
(Equiv. 0.374 in.)
Material
304 Stainless
Max Head Diameter
6.5
mm
Max Head Height
2.1
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 9.5 mm - 304 Stainless Socket
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Type: 1.59 (1/16)   
Category: Screws - Countersunk - Socket
Part Number: SK028C-010-SK-S4 (PK-100)
Out of Stock | Backorder Now | Backorder now for delivery around Fri, Jun 19, 2026
Regular price $8.68 AUD
Regular price $16.29 AUD Sale price $8.68 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 4-40 UNC - 2.85mm - 9.5 mm - 304 Stainless Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)
Overall Length (L)
9.5
mm
+ 0.0 / - 0.76
(Equiv. 0.374 in.)
Material
304 Stainless
Max Head Diameter
6.5
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 9.5 mm - 304 Stainless Socket
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Max Head Height: 2.1 mm    Type: 1.59 (1/16)   
Category: Screws - Countersunk - Socket
Part Number: SK028C-010-SK-S4 (PK-100)
Out of Stock | Backorder Now | Backorder now for delivery around Fri, Jun 19, 2026
Regular price $8.68 AUD
Regular price $16.29 AUD Sale price $8.68 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 4-40 UNC - 2.85mm - 9.5 mm - High Tensile Steel / Black Oxide Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)
Overall Length (L)
9.5
mm
+ 0.0 / - 0.76
(Equiv. 0.374 in.)
Material
High Tensile Steel / Black Oxide
Max Head Diameter
6.5
mm
Max Head Height
2.1
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 9.5 mm - High Tensile Steel / Black Oxide Socket
Material: High Tensile Steel Black Oxide    Type: 1.59 (1/16)   
Category: Screws - Countersunk - Socket
high Tensile
Part Number: SK028C-010-SK-C (PK-10)
7 units (70 pcs) Available Now | Further orders can be expected around Fri, Jun 19, 2026
Regular price $2.68 AUD
Regular price $4.99 AUD Sale price $2.68 AUD
Priced, Stocked and Sold Per 10 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 7 available can be backordered.
Countersunk Screws - 4-40 UNC - 2.85mm - 9.5 mm - High Tensile Steel / Black Oxide Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)
Overall Length (L)
9.5
mm
+ 0.0 / - 0.76
(Equiv. 0.374 in.)
Material
High Tensile Steel / Black Oxide
Max Head Diameter
6.5
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 9.5 mm - High Tensile Steel / Black Oxide Socket
Material: High Tensile Steel Black Oxide    Max Head Height: 2.1 mm    Type: 1.59 (1/16)   
Category: Screws - Countersunk - Socket
high Tensile
Part Number: SK028C-010-SK-C (PK-10)
7 units (70 pcs) Available Now | Further orders can be expected around Fri, Jun 19, 2026
Regular price $2.68 AUD
Regular price $4.99 AUD Sale price $2.68 AUD
Priced, Stocked and Sold Per 10 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

7 units (70 pcs) Available Now. Backorder if more than 7.
Countersunk Screws - 4-40 UNC - 2.85mm - 9.5 mm - Nylon - Zytel 101 - Slotted Screw
Thread Size (C)
4-40 UNC (2.85mm)
Overall Length (L)
9.5
mm
Material
Nylon (Zytel 101)
Max Head Diameter
5.38
mm
Max Head Height
1.70
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 9.5 mm - Nylon - Zytel 101 - Slotted
Material: Nylon (Polyamide 6/6)    Type: Countersunk / Slotted   
Category: Screws - Countersunk - Slotted
Deleted Item. Available while stocks last.
Part Number: SK028C-010-SL-N (PK-10)
9 units (90 pcs) Available Now | Item Discontinued - Up to 9 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $8.00 AUD
Regular price $15.20 AUD Sale price $8.00 AUD
Priced, Stocked and Sold Per 10 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

9 units (90 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Countersunk Screws - 4-40 UNC - 2.85mm - 9.5 mm - Nylon - Zytel 101 - Slotted Screw
Thread Size (C)
4-40 UNC (2.85mm)
Overall Length (L)
9.5
mm
Material
Nylon (Zytel 101)
Max Head Diameter
5.38
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 9.5 mm - Nylon - Zytel 101 - Slotted
Material: Nylon (Polyamide 6/6)    Max Head Height: 1.70 mm    Type: Countersunk / Slotted   
Category: Screws - Countersunk - Slotted
Deleted Item. Available while stocks last.
Part Number: SK028C-010-SL-N (PK-10)
9 units (90 pcs) Available Now | Item Discontinued - Up to 9 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $8.00 AUD
Regular price $15.20 AUD Sale price $8.00 AUD
Priced, Stocked and Sold Per 10 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

9 units (90 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Countersunk Screws - 4-40 UNC - 2.85mm - 12.7 mm - 304 Stainless Phillips Screw
Thread Size (C)
4-40 UNC (2.85mm)
Overall Length (L)
12.7
mm
Material
304 Stainless
Max Head Diameter
5.38
mm
Max Head Height
1.70
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 12.7 mm - 304 Stainless Phillips
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Type: Countersunk / Philips   
Category: Screws - Countersunk - Phillips
Part Number: SK028C-013-PH-S4 (PK-100)
Out of Stock | Backorder Now | Backorder now for delivery around Fri, Jun 19, 2026
Regular price $12.05 AUD
Regular price Sale price $12.05 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 4-40 UNC - 2.85mm - 12.7 mm - 304 Stainless Phillips Screw
Thread Size (C)
4-40 UNC (2.85mm)
Overall Length (L)
12.7
mm
Material
304 Stainless
Max Head Diameter
5.38
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 12.7 mm - 304 Stainless Phillips
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Max Head Height: 1.70 mm    Type: Countersunk / Philips   
Category: Screws - Countersunk - Phillips
Part Number: SK028C-013-PH-S4 (PK-100)
Out of Stock | Backorder Now | Backorder now for delivery around Fri, Jun 19, 2026
Regular price $12.05 AUD
Regular price Sale price $12.05 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 4-40 UNC - 2.85mm - 12.7 mm - 304 Stainless Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)
Overall Length (L)
12.7
mm
+ 0.0 / - 0.76
(Equiv. 0.5 in.)
Material
304 Stainless
Max Head Diameter
6.5
mm
Max Head Height
2.1
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 12.7 mm - 304 Stainless Socket
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Type: 1.59 (1/16)   
Category: Screws - Countersunk - Socket
Part Number: SK028C-013-SK-S4 (PK-20)
3 units (60 pcs) Available Now | Further orders can be expected around Fri, Jun 19, 2026
Regular price $2.32 AUD
Regular price $4.22 AUD Sale price $2.32 AUD
Priced, Stocked and Sold Per 20 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 3 available can be backordered.
Countersunk Screws - 4-40 UNC - 2.85mm - 12.7 mm - 304 Stainless Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)
Overall Length (L)
12.7
mm
+ 0.0 / - 0.76
(Equiv. 0.5 in.)
Material
304 Stainless
Max Head Diameter
6.5
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 12.7 mm - 304 Stainless Socket
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Max Head Height: 2.1 mm    Type: 1.59 (1/16)   
Category: Screws - Countersunk - Socket
Part Number: SK028C-013-SK-S4 (PK-20)
3 units (60 pcs) Available Now | Further orders can be expected around Fri, Jun 19, 2026
Regular price $2.32 AUD
Regular price $4.22 AUD Sale price $2.32 AUD
Priced, Stocked and Sold Per 20 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

3 units (60 pcs) Available Now. Backorder if more than 3.
Countersunk Screws - 4-40 UNC - 2.85mm - 12.7 mm - High Tensile Steel / Black Oxide Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)
Overall Length (L)
12.7
mm
+ 0.0 / - 0.76
(Equiv. 0.5 in.)
Material
High Tensile Steel / Black Oxide
Max Head Diameter
6.5
mm
Max Head Height
2.1
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 12.7 mm - High Tensile Steel / Black Oxide Socket
Material: High Tensile Steel Black Oxide    Type: 1.59 (1/16)   
Category: Screws - Countersunk - Socket
high Tensile
Part Number: SK028C-013-SK-C (PK-100)
Out of Stock | Backorder Now | Backorder now for delivery around Fri, Jun 19, 2026
Regular price $60.32 AUD
Regular price Sale price $60.32 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 4-40 UNC - 2.85mm - 12.7 mm - High Tensile Steel / Black Oxide Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)
Overall Length (L)
12.7
mm
+ 0.0 / - 0.76
(Equiv. 0.5 in.)
Material
High Tensile Steel / Black Oxide
Max Head Diameter
6.5
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 12.7 mm - High Tensile Steel / Black Oxide Socket
Material: High Tensile Steel Black Oxide    Max Head Height: 2.1 mm    Type: 1.59 (1/16)   
Category: Screws - Countersunk - Socket
high Tensile
Part Number: SK028C-013-SK-C (PK-100)
Out of Stock | Backorder Now | Backorder now for delivery around Fri, Jun 19, 2026
Regular price $60.32 AUD
Regular price Sale price $60.32 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 4-40 UNC - 2.85mm - 15.9 mm - 304 Stainless Slotted Screw
Thread Size (C)
4-40 UNC (2.85mm)
Overall Length (L)
15.9
mm
Material
304 Stainless
Max Head Diameter
5.38
mm
Max Head Height
1.70
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 15.9 mm - 304 Stainless Slotted
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Type: Countersunk / Slotted   
Category: Screws - Countersunk - Slotted
Deleted Item. Available while stocks last.
Part Number: SK028C-016-SL-S4 (PK-22)
1 pack (22 pcs) Available Now | Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $4.40 AUD
Regular price $8.36 AUD Sale price $4.40 AUD
Priced, Stocked and Sold Per 22 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

1 pack (22 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Countersunk Screws - 4-40 UNC - 2.85mm - 15.9 mm - 304 Stainless Slotted Screw
Thread Size (C)
4-40 UNC (2.85mm)
Overall Length (L)
15.9
mm
Material
304 Stainless
Max Head Diameter
5.38
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 15.9 mm - 304 Stainless Slotted
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Max Head Height: 1.70 mm    Type: Countersunk / Slotted   
Category: Screws - Countersunk - Slotted
Deleted Item. Available while stocks last.
Part Number: SK028C-016-SL-S4 (PK-22)
1 pack (22 pcs) Available Now | Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $4.40 AUD
Regular price $8.36 AUD Sale price $4.40 AUD
Priced, Stocked and Sold Per 22 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

1 pack (22 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Countersunk Screws - 4-40 UNC - 2.85mm - 15.9 mm - 304 Stainless Phillips Screw
Thread Size (C)
4-40 UNC (2.85mm)
Overall Length (L)
15.9
mm
Material
304 Stainless
Max Head Diameter
5.38
mm
Max Head Height
1.70
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 15.9 mm - 304 Stainless Phillips
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Type: Countersunk / Philips   
Category: Screws - Countersunk - Phillips
Part Number: SK028C-016-PH-S4 (PK-100)
Out of Stock | Backorder Now | Backorder now for delivery around Fri, Jun 19, 2026
Regular price $14.32 AUD
Regular price Sale price $14.32 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 4-40 UNC - 2.85mm - 15.9 mm - 304 Stainless Phillips Screw
Thread Size (C)
4-40 UNC (2.85mm)
Overall Length (L)
15.9
mm
Material
304 Stainless
Max Head Diameter
5.38
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 15.9 mm - 304 Stainless Phillips
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Max Head Height: 1.70 mm    Type: Countersunk / Philips   
Category: Screws - Countersunk - Phillips
Part Number: SK028C-016-PH-S4 (PK-100)
Out of Stock | Backorder Now | Backorder now for delivery around Fri, Jun 19, 2026
Regular price $14.32 AUD
Regular price Sale price $14.32 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.