Collection: Screws - Button - Socket - Alloy Steel

Screws -> Button -> Socket -> Alloy Steel
Thread Size (C) Thread Length (L) Material Max Head Diameter Max Head Height Indicative
Image
Button Screws - 4-40 UNC - 2.85mm - 6.4 mm - Alloy Steel Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)

Thread Length (L)
6.4
mm

(Equiv. 0.252 in.)
Material
Alloy Steel

Max Head Diameter
5.4
mm
Max Head Height
1.5
mm
Button Screws - 4-40 UNC - 2.85mm - 6.4 mm - Alloy Steel Socket
Material: Steel Alloy    Hex Key (D): 1.59 (1/16) mm    Pitch: 0.635 mm    Threads Per Inch: 40 TPI   
Part Number: SC028C-006-B-SK-C (PK-20)
4 units (80 pcs) Available Now | Further orders can be expected around Sat, Jan 10, 2026
Regular price $2.14 AUD
Regular price $3.95 AUD Sale price $2.14 AUD
Priced, Stocked and Sold Per 20 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 4 available can be backordered.
Thread Size (C) Thread Length (L) Material Max Head Diameter Indicative
Image
Button Screws - 4-40 UNC - 2.85mm - 6.4 mm - Alloy Steel Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)

Thread Length (L)
6.4
mm

(Equiv. 0.252 in.)
Material
Alloy Steel

Max Head Diameter
5.4
mm
Button Screws - 4-40 UNC - 2.85mm - 6.4 mm - Alloy Steel Socket
Material: Steel Alloy    Max Head Height: 1.5 mm    Hex Key (D): 1.59 (1/16) mm    Pitch: 0.635 mm    Threads Per Inch: 40 TPI   
Part Number: SC028C-006-B-SK-C (PK-20)
4 units (80 pcs) Available Now | Further orders can be expected around Sat, Jan 10, 2026
Regular price $2.14 AUD
Regular price $3.95 AUD Sale price $2.14 AUD
Priced, Stocked and Sold Per 20 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

4 units (80 pcs) Available Now. Backorder if more than 4.
Button Screws - 4-40 UNC - 2.85mm - 7.9 mm - Alloy Steel Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)

Thread Length (L)
7.9
mm

(Equiv. 0.311 in.)
Material
Alloy Steel

Max Head Diameter
5.4
mm
Max Head Height
1.5
mm
Button Screws - 4-40 UNC - 2.85mm - 7.9 mm - Alloy Steel Socket
Material: Steel Alloy    Hex Key (D): 1.59 (1/16) mm    Pitch: 0.635 mm    Threads Per Inch: 40 TPI   
Part Number: SC028C-007-B-SK-C (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $26.86 AUD
Regular price Sale price $26.86 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Button Screws - 4-40 UNC - 2.85mm - 7.9 mm - Alloy Steel Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)

Thread Length (L)
7.9
mm

(Equiv. 0.311 in.)
Material
Alloy Steel

Max Head Diameter
5.4
mm
Button Screws - 4-40 UNC - 2.85mm - 7.9 mm - Alloy Steel Socket
Material: Steel Alloy    Max Head Height: 1.5 mm    Hex Key (D): 1.59 (1/16) mm    Pitch: 0.635 mm    Threads Per Inch: 40 TPI   
Part Number: SC028C-007-B-SK-C (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $26.86 AUD
Regular price Sale price $26.86 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Button Screws - 4-40 UNC - 2.85mm - 9.5 mm - Alloy Steel Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)

Thread Length (L)
9.5
mm

(Equiv. 0.374 in.)
Material
Alloy Steel

Max Head Diameter
5.4
mm
Max Head Height
1.5
mm
Button Screws - 4-40 UNC - 2.85mm - 9.5 mm - Alloy Steel Socket
Material: Steel Alloy    Hex Key (D): 1.59 (1/16) mm    Pitch: 0.635 mm    Threads Per Inch: 40 TPI   
Part Number: SC028C-010-B-SK-C (PK-20)
1 pack (20 pcs) Available Now | Further orders can be expected around Sat, Jan 10, 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 1 available can be backordered.
Button Screws - 4-40 UNC - 2.85mm - 9.5 mm - Alloy Steel Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)

Thread Length (L)
9.5
mm

(Equiv. 0.374 in.)
Material
Alloy Steel

Max Head Diameter
5.4
mm
Button Screws - 4-40 UNC - 2.85mm - 9.5 mm - Alloy Steel Socket
Material: Steel Alloy    Max Head Height: 1.5 mm    Hex Key (D): 1.59 (1/16) mm    Pitch: 0.635 mm    Threads Per Inch: 40 TPI   
Part Number: SC028C-010-B-SK-C (PK-20)
1 pack (20 pcs) Available Now | Further orders can be expected around Sat, Jan 10, 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

1 pack (20 pcs) Available Now. Backorder if more than 1.
Button Screws - 4-40 UNC - 2.85mm - 12.7 mm - Alloy Steel Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)

Thread Length (L)
12.7
mm

(Equiv. 0.5 in.)
Material
Alloy Steel

Max Head Diameter
5.4
mm
Max Head Height
1.5
mm
Button Screws - 4-40 UNC - 2.85mm - 12.7 mm - Alloy Steel Socket
Material: Steel Alloy    Hex Key (D): 1.59 (1/16) mm    Pitch: 0.635 mm    Threads Per Inch: 40 TPI   
Part Number: SC028C-013-B-SK-C (PK-20)
11 units (220 pcs) Available Now | Further orders can be expected around Sat, Jan 10, 2026
Regular price $2.95 AUD
Regular price $5.45 AUD Sale price $2.95 AUD
Priced, Stocked and Sold Per 20 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 11 available can be backordered.
Button Screws - 4-40 UNC - 2.85mm - 12.7 mm - Alloy Steel Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)

Thread Length (L)
12.7
mm

(Equiv. 0.5 in.)
Material
Alloy Steel

Max Head Diameter
5.4
mm
Button Screws - 4-40 UNC - 2.85mm - 12.7 mm - Alloy Steel Socket
Material: Steel Alloy    Max Head Height: 1.5 mm    Hex Key (D): 1.59 (1/16) mm    Pitch: 0.635 mm    Threads Per Inch: 40 TPI   
Part Number: SC028C-013-B-SK-C (PK-20)
11 units (220 pcs) Available Now | Further orders can be expected around Sat, Jan 10, 2026
Regular price $2.95 AUD
Regular price $5.45 AUD Sale price $2.95 AUD
Priced, Stocked and Sold Per 20 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

11 units (220 pcs) Available Now. Backorder if more than 11.
Button Screws - 4-40 UNC - 2.85mm - 15.9 mm - Alloy Steel Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)

Thread Length (L)
15.9
mm

(Equiv. 0.626 in.)
Material
Alloy Steel

Max Head Diameter
5.4
mm
Max Head Height
1.5
mm
Button Screws - 4-40 UNC - 2.85mm - 15.9 mm - Alloy Steel Socket
Material: Steel Alloy    Hex Key (D): 1.59 (1/16) mm    Pitch: 0.635 mm    Threads Per Inch: 40 TPI   
Part Number: SC028C-016-B-SK-C (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $37.59 AUD
Regular price Sale price $37.59 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Button Screws - 4-40 UNC - 2.85mm - 15.9 mm - Alloy Steel Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)

Thread Length (L)
15.9
mm

(Equiv. 0.626 in.)
Material
Alloy Steel

Max Head Diameter
5.4
mm
Button Screws - 4-40 UNC - 2.85mm - 15.9 mm - Alloy Steel Socket
Material: Steel Alloy    Max Head Height: 1.5 mm    Hex Key (D): 1.59 (1/16) mm    Pitch: 0.635 mm    Threads Per Inch: 40 TPI   
Part Number: SC028C-016-B-SK-C (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $37.59 AUD
Regular price Sale price $37.59 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Button Screws - 4-40 UNC - 2.85mm - 19.1 mm - Alloy Steel Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)

Thread Length (L)
19.1
mm

(Equiv. 0.752 in.)
Material
Alloy Steel

Max Head Diameter
5.4
mm
Max Head Height
1.5
mm
Button Screws - 4-40 UNC - 2.85mm - 19.1 mm - Alloy Steel Socket
Material: Steel Alloy    Hex Key (D): 1.59 (1/16) mm    Pitch: 0.635 mm    Threads Per Inch: 40 TPI   
Part Number: SC028C-019-B-SK-C (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $42.05 AUD
Regular price Sale price $42.05 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Button Screws - 4-40 UNC - 2.85mm - 19.1 mm - Alloy Steel Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)

Thread Length (L)
19.1
mm

(Equiv. 0.752 in.)
Material
Alloy Steel

Max Head Diameter
5.4
mm
Button Screws - 4-40 UNC - 2.85mm - 19.1 mm - Alloy Steel Socket
Material: Steel Alloy    Max Head Height: 1.5 mm    Hex Key (D): 1.59 (1/16) mm    Pitch: 0.635 mm    Threads Per Inch: 40 TPI   
Part Number: SC028C-019-B-SK-C (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $42.05 AUD
Regular price Sale price $42.05 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Button Screws - 4-40 UNC - 2.85mm - 25.4 mm - Alloy Steel Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)

Thread Length (L)
25.4
mm

(Equiv. 1 in.)
Material
Alloy Steel

Max Head Diameter
5.4
mm
Max Head Height
1.5
mm
Button Screws - 4-40 UNC - 2.85mm - 25.4 mm - Alloy Steel Socket
Material: Steel Alloy    Hex Key (D): 1.59 (1/16) mm    Pitch: 0.635 mm    Threads Per Inch: 40 TPI   
Part Number: SC028C-025-B-SK-C (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $57.41 AUD
Regular price Sale price $57.41 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Button Screws - 4-40 UNC - 2.85mm - 25.4 mm - Alloy Steel Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)

Thread Length (L)
25.4
mm

(Equiv. 1 in.)
Material
Alloy Steel

Max Head Diameter
5.4
mm
Button Screws - 4-40 UNC - 2.85mm - 25.4 mm - Alloy Steel Socket
Material: Steel Alloy    Max Head Height: 1.5 mm    Hex Key (D): 1.59 (1/16) mm    Pitch: 0.635 mm    Threads Per Inch: 40 TPI   
Part Number: SC028C-025-B-SK-C (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $57.41 AUD
Regular price Sale price $57.41 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Button Screws - M3 - 3x0.5mm - 5 mm - Alloy Steel Socket Screw
Thread Size (C)
M3 (3x0.5mm)

Thread Length (L)
5
mm

(Equiv. 0.197 in.)
Material
Alloy Steel

Max Head Diameter
5.7
mm
Max Head Height
1.7
mm
Button Screws - M3 - 3x0.5mm - 5 mm - Alloy Steel Socket
Material: Steel Alloy    Hex Key (D): 2.00 mm    Pitch: 0.500 mm    Threads Per Inch: 50.8 TPI   
Part Number: SC030M-005-B-SK-C (PK-50)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $6.41 AUD
Regular price Sale price $6.41 AUD
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Button Screws - M3 - 3x0.5mm - 5 mm - Alloy Steel Socket Screw
Thread Size (C)
M3 (3x0.5mm)

Thread Length (L)
5
mm

(Equiv. 0.197 in.)
Material
Alloy Steel

Max Head Diameter
5.7
mm
Button Screws - M3 - 3x0.5mm - 5 mm - Alloy Steel Socket
Material: Steel Alloy    Max Head Height: 1.7 mm    Hex Key (D): 2.00 mm    Pitch: 0.500 mm    Threads Per Inch: 50.8 TPI   
Part Number: SC030M-005-B-SK-C (PK-50)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $6.41 AUD
Regular price Sale price $6.41 AUD
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Button Screws - M3 - 3x0.5mm - 6 mm - Alloy Steel Socket Screw
Thread Size (C)
M3 (3x0.5mm)

Thread Length (L)
6
mm

(Equiv. 0.236 in.)
Material
Alloy Steel

Max Head Diameter
5.7
mm
Max Head Height
1.7
mm
Button Screws - M3 - 3x0.5mm - 6 mm - Alloy Steel Socket
Material: Steel Alloy    Hex Key (D): 2.00 mm    Pitch: 0.500 mm    Threads Per Inch: 50.8 TPI   
Part Number: SC030M-006-B-SK-C (PK-50)
4 units (200 pcs) Available Now | Further orders can be expected around Sat, Jan 10, 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 4 available can be backordered.
Button Screws - M3 - 3x0.5mm - 6 mm - Alloy Steel Socket Screw
Thread Size (C)
M3 (3x0.5mm)

Thread Length (L)
6
mm

(Equiv. 0.236 in.)
Material
Alloy Steel

Max Head Diameter
5.7
mm
Button Screws - M3 - 3x0.5mm - 6 mm - Alloy Steel Socket
Material: Steel Alloy    Max Head Height: 1.7 mm    Hex Key (D): 2.00 mm    Pitch: 0.500 mm    Threads Per Inch: 50.8 TPI   
Part Number: SC030M-006-B-SK-C (PK-50)
4 units (200 pcs) Available Now | Further orders can be expected around Sat, Jan 10, 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

4 units (200 pcs) Available Now. Backorder if more than 4.
Button Screws - M3 - 3x0.5mm - 8 mm - Alloy Steel Socket Screw
Thread Size (C)
M3 (3x0.5mm)

Thread Length (L)
8
mm

(Equiv. 0.315 in.)
Material
Alloy Steel

Max Head Diameter
5.7
mm
Max Head Height
1.7
mm
Button Screws - M3 - 3x0.5mm - 8 mm - Alloy Steel Socket
Material: Steel Alloy    Hex Key (D): 2.00 mm    Pitch: 0.500 mm    Threads Per Inch: 50.8 TPI   
Part Number: SC030M-008-B-SK-C (PK-20)
15 units (300 pcs) Available Now | Further orders can be expected around Sat, Jan 10, 2026
Regular price $2.77 AUD
Regular price Sale price $2.77 AUD
Priced, Stocked and Sold Per 20 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 15 available can be backordered.
Button Screws - M3 - 3x0.5mm - 8 mm - Alloy Steel Socket Screw
Thread Size (C)
M3 (3x0.5mm)

Thread Length (L)
8
mm

(Equiv. 0.315 in.)
Material
Alloy Steel

Max Head Diameter
5.7
mm
Button Screws - M3 - 3x0.5mm - 8 mm - Alloy Steel Socket
Material: Steel Alloy    Max Head Height: 1.7 mm    Hex Key (D): 2.00 mm    Pitch: 0.500 mm    Threads Per Inch: 50.8 TPI   
Part Number: SC030M-008-B-SK-C (PK-20)
15 units (300 pcs) Available Now | Further orders can be expected around Sat, Jan 10, 2026
Regular price $2.77 AUD
Regular price Sale price $2.77 AUD
Priced, Stocked and Sold Per 20 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

15 units (300 pcs) Available Now. Backorder if more than 15.
Button Screws - M3 - 3x0.5mm - 10 mm - Alloy Steel Socket Screw
Thread Size (C)
M3 (3x0.5mm)

Thread Length (L)
10
mm

(Equiv. 0.394 in.)
Material
Alloy Steel

Max Head Diameter
5.7
mm
Max Head Height
1.7
mm
Button Screws - M3 - 3x0.5mm - 10 mm - Alloy Steel Socket
Material: Steel Alloy    Hex Key (D): 2.00 mm    Pitch: 0.500 mm    Threads Per Inch: 50.8 TPI   
Part Number: SC030M-010-B-SK-C (PK-20)
12 units (240 pcs) Available Now | Further orders can be expected around Sat, Jan 10, 2026
Regular price $2.86 AUD
Regular price Sale price $2.86 AUD
Priced, Stocked and Sold Per 20 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 12 available can be backordered.
Button Screws - M3 - 3x0.5mm - 10 mm - Alloy Steel Socket Screw
Thread Size (C)
M3 (3x0.5mm)

Thread Length (L)
10
mm

(Equiv. 0.394 in.)
Material
Alloy Steel

Max Head Diameter
5.7
mm
Button Screws - M3 - 3x0.5mm - 10 mm - Alloy Steel Socket
Material: Steel Alloy    Max Head Height: 1.7 mm    Hex Key (D): 2.00 mm    Pitch: 0.500 mm    Threads Per Inch: 50.8 TPI   
Part Number: SC030M-010-B-SK-C (PK-20)
12 units (240 pcs) Available Now | Further orders can be expected around Sat, Jan 10, 2026
Regular price $2.86 AUD
Regular price Sale price $2.86 AUD
Priced, Stocked and Sold Per 20 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

12 units (240 pcs) Available Now. Backorder if more than 12.
Button Screws - M3 - 3x0.5mm - 12 mm - Alloy Steel Socket Screw
Thread Size (C)
M3 (3x0.5mm)

Thread Length (L)
12
mm

(Equiv. 0.472 in.)
Material
Alloy Steel

Max Head Diameter
5.7
mm
Max Head Height
1.7
mm
Button Screws - M3 - 3x0.5mm - 12 mm - Alloy Steel Socket
Material: Steel Alloy    Hex Key (D): 2.00 mm    Pitch: 0.500 mm    Threads Per Inch: 50.8 TPI   
Part Number: SC030M-012-B-SK-C (PK-20)
30 units (600 pcs) Available Now | Further orders can be expected around Sat, Jan 10, 2026
Regular price $3.05 AUD
Regular price Sale price $3.05 AUD
Priced, Stocked and Sold Per 20 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 30 available can be backordered.
Button Screws - M3 - 3x0.5mm - 12 mm - Alloy Steel Socket Screw
Thread Size (C)
M3 (3x0.5mm)

Thread Length (L)
12
mm

(Equiv. 0.472 in.)
Material
Alloy Steel

Max Head Diameter
5.7
mm
Button Screws - M3 - 3x0.5mm - 12 mm - Alloy Steel Socket
Material: Steel Alloy    Max Head Height: 1.7 mm    Hex Key (D): 2.00 mm    Pitch: 0.500 mm    Threads Per Inch: 50.8 TPI   
Part Number: SC030M-012-B-SK-C (PK-20)
30 units (600 pcs) Available Now | Further orders can be expected around Sat, Jan 10, 2026
Regular price $3.05 AUD
Regular price Sale price $3.05 AUD
Priced, Stocked and Sold Per 20 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

30 units (600 pcs) Available Now. Backorder if more than 30.
Button Screws - M3 - 3x0.5mm - 16 mm - Alloy Steel Socket Screw
Thread Size (C)
M3 (3x0.5mm)

Thread Length (L)
16
mm

(Equiv. 0.63 in.)
Material
Alloy Steel

Max Head Diameter
5.7
mm
Max Head Height
1.7
mm
Button Screws - M3 - 3x0.5mm - 16 mm - Alloy Steel Socket
Material: Steel Alloy    Hex Key (D): 2.00 mm    Pitch: 0.500 mm    Threads Per Inch: 50.8 TPI   
Part Number: SC030M-016-B-SK-C (PK-20)
38 units (760 pcs) Available Now | Further orders can be expected around Sat, Jan 10, 2026
Regular price $3.41 AUD
Regular price Sale price $3.41 AUD
Priced, Stocked and Sold Per 20 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 38 available can be backordered.
Button Screws - M3 - 3x0.5mm - 16 mm - Alloy Steel Socket Screw
Thread Size (C)
M3 (3x0.5mm)

Thread Length (L)
16
mm

(Equiv. 0.63 in.)
Material
Alloy Steel

Max Head Diameter
5.7
mm
Button Screws - M3 - 3x0.5mm - 16 mm - Alloy Steel Socket
Material: Steel Alloy    Max Head Height: 1.7 mm    Hex Key (D): 2.00 mm    Pitch: 0.500 mm    Threads Per Inch: 50.8 TPI   
Part Number: SC030M-016-B-SK-C (PK-20)
38 units (760 pcs) Available Now | Further orders can be expected around Sat, Jan 10, 2026
Regular price $3.41 AUD
Regular price Sale price $3.41 AUD
Priced, Stocked and Sold Per 20 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

38 units (760 pcs) Available Now. Backorder if more than 38.
Button Screws - M3 - 3x0.5mm - 20 mm - Alloy Steel Socket Screw
Thread Size (C)
M3 (3x0.5mm)

Thread Length (L)
20
mm

(Equiv. 0.787 in.)
Material
Alloy Steel

Max Head Diameter
5.7
mm
Max Head Height
1.7
mm
Button Screws - M3 - 3x0.5mm - 20 mm - Alloy Steel Socket
Material: Steel Alloy    Hex Key (D): 2.00 mm    Pitch: 0.500 mm    Threads Per Inch: 50.8 TPI   
Part Number: SC030M-020-B-SK-C (PK-20)
10 units (200 pcs) Available Now | Further orders can be expected around Sat, Jan 10, 2026
Regular price $3.77 AUD
Regular price Sale price $3.77 AUD
Priced, Stocked and Sold Per 20 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 10 available can be backordered.
Button Screws - M3 - 3x0.5mm - 20 mm - Alloy Steel Socket Screw
Thread Size (C)
M3 (3x0.5mm)

Thread Length (L)
20
mm

(Equiv. 0.787 in.)
Material
Alloy Steel

Max Head Diameter
5.7
mm
Button Screws - M3 - 3x0.5mm - 20 mm - Alloy Steel Socket
Material: Steel Alloy    Max Head Height: 1.7 mm    Hex Key (D): 2.00 mm    Pitch: 0.500 mm    Threads Per Inch: 50.8 TPI   
Part Number: SC030M-020-B-SK-C (PK-20)
10 units (200 pcs) Available Now | Further orders can be expected around Sat, Jan 10, 2026
Regular price $3.77 AUD
Regular price Sale price $3.77 AUD
Priced, Stocked and Sold Per 20 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

10 units (200 pcs) Available Now. Backorder if more than 10.
Button Screws - M3 - 3x0.5mm - 25 mm - Alloy Steel Socket Screw
Thread Size (C)
M3 (3x0.5mm)

Thread Length (L)
25
mm

(Equiv. 0.984 in.)
Material
Alloy Steel

Max Head Diameter
5.7
mm
Max Head Height
1.7
mm
Button Screws - M3 - 3x0.5mm - 25 mm - Alloy Steel Socket
Material: Steel Alloy    Hex Key (D): 2.00 mm    Pitch: 0.500 mm    Threads Per Inch: 50.8 TPI   
Part Number: SC030M-025-B-SK-C (PK-20)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $4.14 AUD
Regular price Sale price $4.14 AUD
Priced, Stocked and Sold Per 20 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Button Screws - M3 - 3x0.5mm - 25 mm - Alloy Steel Socket Screw
Thread Size (C)
M3 (3x0.5mm)

Thread Length (L)
25
mm

(Equiv. 0.984 in.)
Material
Alloy Steel

Max Head Diameter
5.7
mm
Button Screws - M3 - 3x0.5mm - 25 mm - Alloy Steel Socket
Material: Steel Alloy    Max Head Height: 1.7 mm    Hex Key (D): 2.00 mm    Pitch: 0.500 mm    Threads Per Inch: 50.8 TPI   
Part Number: SC030M-025-B-SK-C (PK-20)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $4.14 AUD
Regular price Sale price $4.14 AUD
Priced, Stocked and Sold Per 20 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Button Screws - M3 - 3x0.5mm - 30 mm - Alloy Steel Socket Screw
Thread Size (C)
M3 (3x0.5mm)

Thread Length (L)
30
mm

(Equiv. 1.181 in.)
Material
Alloy Steel

Max Head Diameter
5.7
mm
Max Head Height
1.7
mm
Button Screws - M3 - 3x0.5mm - 30 mm - Alloy Steel Socket
Material: Steel Alloy    Hex Key (D): 2.00 mm    Pitch: 0.500 mm    Threads Per Inch: 50.8 TPI   
Part Number: SC030M-030-B-SK-C (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $27.23 AUD
Regular price Sale price $27.23 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Button Screws - M3 - 3x0.5mm - 30 mm - Alloy Steel Socket Screw
Thread Size (C)
M3 (3x0.5mm)

Thread Length (L)
30
mm

(Equiv. 1.181 in.)
Material
Alloy Steel

Max Head Diameter
5.7
mm
Button Screws - M3 - 3x0.5mm - 30 mm - Alloy Steel Socket
Material: Steel Alloy    Max Head Height: 1.7 mm    Hex Key (D): 2.00 mm    Pitch: 0.500 mm    Threads Per Inch: 50.8 TPI   
Part Number: SC030M-030-B-SK-C (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $27.23 AUD
Regular price Sale price $27.23 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Button Screws - M3 - 3x0.5mm - 40 mm - Alloy Steel Socket Screw
Thread Size (C)
M3 (3x0.5mm)

Thread Length (L)
40
mm

(Equiv. 1.575 in.)
Material
Alloy Steel

Max Head Diameter
5.7
mm
Max Head Height
1.7
mm
Button Screws - M3 - 3x0.5mm - 40 mm - Alloy Steel Socket
Material: Steel Alloy    Hex Key (D): 2.00 mm    Pitch: 0.500 mm    Threads Per Inch: 50.8 TPI   
Part Number: SC030M-040-B-SK-C (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $44.86 AUD
Regular price Sale price $44.86 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Button Screws - M3 - 3x0.5mm - 40 mm - Alloy Steel Socket Screw
Thread Size (C)
M3 (3x0.5mm)

Thread Length (L)
40
mm

(Equiv. 1.575 in.)
Material
Alloy Steel

Max Head Diameter
5.7
mm
Button Screws - M3 - 3x0.5mm - 40 mm - Alloy Steel Socket
Material: Steel Alloy    Max Head Height: 1.7 mm    Hex Key (D): 2.00 mm    Pitch: 0.500 mm    Threads Per Inch: 50.8 TPI   
Part Number: SC030M-040-B-SK-C (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $44.86 AUD
Regular price Sale price $44.86 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Button Screws - 5-40 UNC - 3.18mm - 6.4 mm - Alloy Steel Socket Screw
Thread Size (C)
5-40 UNC (3.18mm)

Thread Length (L)
6.4
mm

(Equiv. 0.252 in.)
Material
Alloy Steel

Max Head Diameter
6.0
mm
Max Head Height
1.7
mm
Button Screws - 5-40 UNC - 3.18mm - 6.4 mm - Alloy Steel Socket
Material: Steel Alloy    Hex Key (D): 1.98 (5/64) mm    Pitch: 0.635 mm    Threads Per Inch: 40 TPI   
Part Number: SC032C-006-B-SK-C (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $32.86 AUD
Regular price Sale price $32.86 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Button Screws - 5-40 UNC - 3.18mm - 6.4 mm - Alloy Steel Socket Screw
Thread Size (C)
5-40 UNC (3.18mm)

Thread Length (L)
6.4
mm

(Equiv. 0.252 in.)
Material
Alloy Steel

Max Head Diameter
6.0
mm
Button Screws - 5-40 UNC - 3.18mm - 6.4 mm - Alloy Steel Socket
Material: Steel Alloy    Max Head Height: 1.7 mm    Hex Key (D): 1.98 (5/64) mm    Pitch: 0.635 mm    Threads Per Inch: 40 TPI   
Part Number: SC032C-006-B-SK-C (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $32.86 AUD
Regular price Sale price $32.86 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Button Screws - 5-40 UNC - 3.18mm - 9.5 mm - Alloy Steel Socket Screw
Thread Size (C)
5-40 UNC (3.18mm)

Thread Length (L)
9.5
mm

(Equiv. 0.374 in.)
Material
Alloy Steel

Max Head Diameter
6.0
mm
Max Head Height
1.7
mm
Button Screws - 5-40 UNC - 3.18mm - 9.5 mm - Alloy Steel Socket
Material: Steel Alloy    Hex Key (D): 1.98 (5/64) mm    Pitch: 0.635 mm    Threads Per Inch: 40 TPI   
Part Number: SC032C-010-B-SK-C (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $40.14 AUD
Regular price Sale price $40.14 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Button Screws - 5-40 UNC - 3.18mm - 9.5 mm - Alloy Steel Socket Screw
Thread Size (C)
5-40 UNC (3.18mm)

Thread Length (L)
9.5
mm

(Equiv. 0.374 in.)
Material
Alloy Steel

Max Head Diameter
6.0
mm
Button Screws - 5-40 UNC - 3.18mm - 9.5 mm - Alloy Steel Socket
Material: Steel Alloy    Max Head Height: 1.7 mm    Hex Key (D): 1.98 (5/64) mm    Pitch: 0.635 mm    Threads Per Inch: 40 TPI   
Part Number: SC032C-010-B-SK-C (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $40.14 AUD
Regular price Sale price $40.14 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Button Screws - 5-40 UNC - 3.18mm - 12.7 mm - Alloy Steel Socket Screw
Thread Size (C)
5-40 UNC (3.18mm)

Thread Length (L)
12.7
mm

(Equiv. 0.5 in.)
Material
Alloy Steel

Max Head Diameter
6.0
mm
Max Head Height
1.7
mm
Button Screws - 5-40 UNC - 3.18mm - 12.7 mm - Alloy Steel Socket
Material: Steel Alloy    Hex Key (D): 1.98 (5/64) mm    Pitch: 0.635 mm    Threads Per Inch: 40 TPI   
Part Number: SC032C-013-B-SK-C (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $47.95 AUD
Regular price Sale price $47.95 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Button Screws - 5-40 UNC - 3.18mm - 12.7 mm - Alloy Steel Socket Screw
Thread Size (C)
5-40 UNC (3.18mm)

Thread Length (L)
12.7
mm

(Equiv. 0.5 in.)
Material
Alloy Steel

Max Head Diameter
6.0
mm
Button Screws - 5-40 UNC - 3.18mm - 12.7 mm - Alloy Steel Socket
Material: Steel Alloy    Max Head Height: 1.7 mm    Hex Key (D): 1.98 (5/64) mm    Pitch: 0.635 mm    Threads Per Inch: 40 TPI   
Part Number: SC032C-013-B-SK-C (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $47.95 AUD
Regular price Sale price $47.95 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Button Screws - 5-40 UNC - 3.18mm - 15.9 mm - Alloy Steel Socket Screw
Thread Size (C)
5-40 UNC (3.18mm)

Thread Length (L)
15.9
mm

(Equiv. 0.626 in.)
Material
Alloy Steel

Max Head Diameter
6.0
mm
Max Head Height
1.7
mm
Button Screws - 5-40 UNC - 3.18mm - 15.9 mm - Alloy Steel Socket
Material: Steel Alloy    Hex Key (D): 1.98 (5/64) mm    Pitch: 0.635 mm    Threads Per Inch: 40 TPI   
Part Number: SC032C-016-B-SK-C (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $56.50 AUD
Regular price Sale price $56.50 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Button Screws - 5-40 UNC - 3.18mm - 15.9 mm - Alloy Steel Socket Screw
Thread Size (C)
5-40 UNC (3.18mm)

Thread Length (L)
15.9
mm

(Equiv. 0.626 in.)
Material
Alloy Steel

Max Head Diameter
6.0
mm
Button Screws - 5-40 UNC - 3.18mm - 15.9 mm - Alloy Steel Socket
Material: Steel Alloy    Max Head Height: 1.7 mm    Hex Key (D): 1.98 (5/64) mm    Pitch: 0.635 mm    Threads Per Inch: 40 TPI   
Part Number: SC032C-016-B-SK-C (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $56.50 AUD
Regular price Sale price $56.50 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Button Screws - 5-40 UNC - 3.18mm - 19.1 mm - Alloy Steel Socket Screw
Thread Size (C)
5-40 UNC (3.18mm)

Thread Length (L)
19.1
mm

(Equiv. 0.752 in.)
Material
Alloy Steel

Max Head Diameter
6.0
mm
Max Head Height
1.7
mm
Button Screws - 5-40 UNC - 3.18mm - 19.1 mm - Alloy Steel Socket
Material: Steel Alloy    Hex Key (D): 1.98 (5/64) mm    Pitch: 0.635 mm    Threads Per Inch: 40 TPI   
Part Number: SC032C-019-B-SK-C (PK-50)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $32.59 AUD
Regular price Sale price $32.59 AUD
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Button Screws - 5-40 UNC - 3.18mm - 19.1 mm - Alloy Steel Socket Screw
Thread Size (C)
5-40 UNC (3.18mm)

Thread Length (L)
19.1
mm

(Equiv. 0.752 in.)
Material
Alloy Steel

Max Head Diameter
6.0
mm
Button Screws - 5-40 UNC - 3.18mm - 19.1 mm - Alloy Steel Socket
Material: Steel Alloy    Max Head Height: 1.7 mm    Hex Key (D): 1.98 (5/64) mm    Pitch: 0.635 mm    Threads Per Inch: 40 TPI   
Part Number: SC032C-019-B-SK-C (PK-50)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $32.59 AUD
Regular price Sale price $32.59 AUD
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Button Screws - 5-40 UNC - 3.18mm - 25.4 mm - Alloy Steel Socket Screw
Thread Size (C)
5-40 UNC (3.18mm)

Thread Length (L)
25.4
mm

(Equiv. 1 in.)
Material
Alloy Steel

Max Head Diameter
6.0
mm
Max Head Height
1.7
mm
Button Screws - 5-40 UNC - 3.18mm - 25.4 mm - Alloy Steel Socket
Material: Steel Alloy    Hex Key (D): 1.98 (5/64) mm    Pitch: 0.635 mm    Threads Per Inch: 40 TPI   
Part Number: SC032C-025-B-SK-C (PK-50)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $23.23 AUD
Regular price $27.87 AUD Sale price $23.23 AUD
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Button Screws - 5-40 UNC - 3.18mm - 25.4 mm - Alloy Steel Socket Screw
Thread Size (C)
5-40 UNC (3.18mm)

Thread Length (L)
25.4
mm

(Equiv. 1 in.)
Material
Alloy Steel

Max Head Diameter
6.0
mm
Button Screws - 5-40 UNC - 3.18mm - 25.4 mm - Alloy Steel Socket
Material: Steel Alloy    Max Head Height: 1.7 mm    Hex Key (D): 1.98 (5/64) mm    Pitch: 0.635 mm    Threads Per Inch: 40 TPI   
Part Number: SC032C-025-B-SK-C (PK-50)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $23.23 AUD
Regular price $27.87 AUD Sale price $23.23 AUD
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Button Screws - 6-32 UNC - 3.5mm - 6.4 mm - Alloy Steel Socket Screw
Thread Size (C)
6-32 UNC (3.5mm)

Thread Length (L)
6.4
mm

(Equiv. 0.252 in.)
Material
Alloy Steel

Max Head Diameter
6.7
mm
Max Head Height
1.9
mm
Button Screws - 6-32 UNC - 3.5mm - 6.4 mm - Alloy Steel Socket
Material: Steel Alloy    Hex Key (D): 1.98 (5/64) mm    Pitch: 0.794 mm    Threads Per Inch: 32 TPI   
Part Number: SC035C-006-B-SK-C (PK-20)
3 units (60 pcs) Available Now | Further orders can be expected around Sat, Jan 10, 2026
Regular price $2.23 AUD
Regular price $4.06 AUD Sale price $2.23 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.
Button Screws - 6-32 UNC - 3.5mm - 6.4 mm - Alloy Steel Socket Screw
Thread Size (C)
6-32 UNC (3.5mm)

Thread Length (L)
6.4
mm

(Equiv. 0.252 in.)
Material
Alloy Steel

Max Head Diameter
6.7
mm
Button Screws - 6-32 UNC - 3.5mm - 6.4 mm - Alloy Steel Socket
Material: Steel Alloy    Max Head Height: 1.9 mm    Hex Key (D): 1.98 (5/64) mm    Pitch: 0.794 mm    Threads Per Inch: 32 TPI   
Part Number: SC035C-006-B-SK-C (PK-20)
3 units (60 pcs) Available Now | Further orders can be expected around Sat, Jan 10, 2026
Regular price $2.23 AUD
Regular price $4.06 AUD Sale price $2.23 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.