Special Offers
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6.3 X 25 Hex Head Self Drilling Screw DIN 7504-K A2 Stainless Steel
In stockRRP From £11.21 -
M8 Flat Washer, Form A DIN 125-A A2 Stainless Steel
In stockRRP From £2.69 -
M8 Nylon Insert Nut DIN 985 A2 Stainless Steel
In stockRRP From £3.23 -
M10 Hexagon Full Nut DIN 934 A2 Stainless Steel
In stockRRP From £3.99
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1/4" UNC X 3/8" Hexagon Socket Cap Screw ANSI/ASME B18.3 A2 Stainless Steel
In stockThis 1/4" UNC x 3/8" socket cap screw is manufactured to ANSI/ASME B18.3 in A2 stainless steel (304 grade). ANSI/ASME B18.3 specifies the imperial series of socket head cap screws, driven by an internal hexagon socket,...RRP From £3.70RRP From £3.70 -
1/4" UNC X 5/8" Hex Socket Countersunk ASME B18.3 Stainless Steel
In stockThis 1/4" UNC x 5/8" socket cap screw is manufactured to ASME B18.3 in stainless steel. ASME B18.3 specifies the imperial series of socket head cap screws, driven by an internal hexagon socket, making it the...RRP From £4.42RRP From £4.42 -
1/4" UNC X 3/4" Hexagon Socket Cap Screw ANSI/ASME B18.3 A4 Stainless Steel
In stockThis 1/4" UNC x 3/4" socket cap screw is manufactured to ANSI/ASME B18.3 in A4 stainless steel (316 grade). ANSI/ASME B18.3 specifies the imperial series of socket head cap screws, driven by an internal hexagon socket,...RRP From £13.19RRP From £13.19 -
1/4" UNC X 3/4" Socket Button A2 Stainless Steel
In stockThis 1/4" UNC x 3/4" socket button head screw is manufactured to B18.3 in A2 stainless steel (304 grade). B18.3 specifies a low domed head with a hexagon socket drive, for a neat, low-profile finish where...RRP From £3.80RRP From £3.80 -
1/4" UNC X 3/8" Socket Button B18.3 A2 Stainless Steel
In stockThis 1/4" UNC x 3/8" socket button head screw is manufactured to B18.3 in A2 stainless steel (304 grade). B18.3 specifies a low domed head with a hexagon socket drive, for a neat, low-profile finish where...RRP From £3.56RRP From £3.56 -
1/4" UNC X 3.1/2" Hexagon Socket Cap Screw ANSI/ASME B18.3 A2 Stainless Steel
Out of stockThis 1/4" UNC x 3.1/2" socket cap screw is manufactured to ANSI/ASME B18.3 in A2 stainless steel (304 grade). ANSI/ASME B18.3 specifies the imperial series of socket head cap screws, driven by an internal hexagon socket,...RRP From £21.12RRP From £21.12 -
1/4" UNC X 3/4" Hexagon Socket Cap Screw ANSI/ASME B18.3 A2 Stainless Steel
In stockThis 1/4" UNC x 3/4" socket cap screw is manufactured to ANSI/ASME B18.3 in A2 stainless steel (304 grade). ANSI/ASME B18.3 specifies the imperial series of socket head cap screws, driven by an internal hexagon socket,...RRP From £3.35RRP From £3.35 -
1/4" UNC X 3" Hexagon Socket Cap Screw ANSI/ASME B18.3 A4 Stainless Steel
In stockThis 1/4" UNC x 3" socket cap screw is manufactured to ANSI/ASME B18.3 in A4 stainless steel (316 grade). ANSI/ASME B18.3 specifies the imperial series of socket head cap screws, driven by an internal hexagon socket,...RRP From £21.30RRP From £21.30 -
1/4" UNC X 3" Socket Button B18.3 A2 Stainless Steel
In stockThis 1/4" UNC x 3" socket button head screw is manufactured to B18.3 in A2 stainless steel (304 grade). B18.3 specifies a low domed head with a hexagon socket drive, for a neat, low-profile finish where...RRP From £7.54RRP From £7.54 -
1/4" UNC X 2.1/2" Hexagon Socket Cap Screw ANSI/ASME B18.3 A2 Stainless Steel
In stockThis 1/4" UNC x 2.1/2" socket cap screw is manufactured to ANSI/ASME B18.3 in A2 stainless steel (304 grade). ANSI/ASME B18.3 specifies a cylindrical head driven by an internal hexagon socket, making it suitable for counterbored...RRP From £7.63RRP From £7.63 -
1/4" UNC X 3" Hexagon Socket Cap Screw ANSI/ASME B18.3 A2 Stainless Steel
In stockThis 1/4" UNC x 3" socket cap screw is manufactured to ANSI/ASME B18.3 in A2 stainless steel (304 grade). ANSI/ASME B18.3 specifies the imperial series of socket head cap screws, driven by an internal hexagon socket,...RRP From £8.24RRP From £8.24 -
1/4" UNC X 2.1/4" Hexagon Socket Cap Screw ANSI/ASME B18.3 A2 Stainless Steel
In stockThis 1/4" UNC x 2.1/4" socket cap screw is manufactured to ANSI/ASME B18.3 in A2 stainless steel (304 grade). ANSI/ASME B18.3 specifies a cylindrical head driven by an internal hexagon socket, making it suitable for counterbored...RRP From £7.36RRP From £7.36 -
1/4" UNC X 2.3/4" Hexagon Socket Cap Screw ANSI/ASME B18.3 A2 Stainless Steel
In stockThis 1/4" UNC x 2.3/4" socket cap screw is manufactured to ANSI/ASME B18.3 in A2 stainless steel (304 grade). ANSI/ASME B18.3 specifies a cylindrical head driven by an internal hexagon socket, making it suitable for counterbored...RRP From £7.54RRP From £7.54 -
1/4" UNC X 2" Hex Socket Countersunk DIN 7991 A2 Stainless Steel
In stockThis 1/4" UNC x 2" socket countersunk screw is manufactured to DIN 7991 in A2 stainless steel (304 grade). DIN 7991 specifies a 90 degree countersunk head driven by an internal hexagon socket, allowing the head...RRP From £4.00RRP From £4.00 -
1/4" UNC X 2.1/2" Hex Socket Countersunk ASME B18.3 A2 Stainless Steel
In stockThis 1/4" UNC x 2.1/2" socket cap screw is manufactured to ASME B18.3 in A2 stainless steel (304 grade). ASME B18.3 specifies the imperial series of socket head cap screws, driven by an internal hexagon socket,...RRP From £5.84RRP From £5.84 -
1/4" UNC X 2" Hexagon Socket Cap Screw ANSI/ASME B18.3 A2 Stainless Steel
In stockThis 1/4" UNC x 2" socket cap screw is manufactured to ANSI/ASME B18.3 in A2 stainless steel (304 grade). ANSI/ASME B18.3 specifies the imperial series of socket head cap screws, driven by an internal hexagon socket,...RRP From £7.06RRP From £7.06 -
1/4" UNC X 2" Socket Button A2 Stainless Steel
In stockThis 1/4" UNC x 2" socket button head screw is manufactured to B18.3 in A2 stainless steel (304 grade). B18.3 specifies a low domed head with a hexagon socket drive, for a neat, low-profile finish where...RRP From £6.85RRP From £6.85 -
1/4" UNC X 1/2" Hexagon Socket Cap Screw ANSI/ASME B18.3 A4 Stainless Steel
In stockThis 1/4" UNC x 1/2" socket cap screw is manufactured to ANSI/ASME B18.3 in A4 stainless steel (316 grade). ANSI/ASME B18.3 specifies the imperial series of socket head cap screws, driven by an internal hexagon socket,...RRP From £12.49RRP From £12.49 -
1/4" UNC X 1/2" Socket Button B18.3 A2 Stainless Steel
In stockThis 1/4" UNC x 1/2" socket button head screw is manufactured to B18.3 in A2 stainless steel (304 grade). B18.3 specifies a low domed head with a hexagon socket drive, for a neat, low-profile finish where...RRP From £5.60RRP From £5.60 -
1/4" UNC X 1.3/4" Socket Button ASME B18.3 A2 Stainless Steel
In stockThis 1/4" UNC x 1.3/4" socket button head screw is manufactured to ASME B18.3 in A2 stainless steel (304 grade). ASME B18.3 specifies a low domed head with a hexagon socket drive, for a neat, low-profile...RRP From £6.64RRP From £6.64 -
1/4" UNC X 1.3/4" Hexagon Socket Cap Screw ANSI/ASME B18.3 A2 Stainless Steel
In stockThis 1/4" UNC x 1.3/4" socket cap screw is manufactured to ANSI/ASME B18.3 in A2 stainless steel (304 grade). ANSI/ASME B18.3 specifies a cylindrical head driven by an internal hexagon socket, making it suitable for counterbored...RRP From £6.37RRP From £6.37 -
1/4" UNC X 1/2" Hexagon Socket Cap Screw ANSI/ASME B18.3 A2 Stainless Steel
Out of stockThis 1/4" UNC x 1/2" socket cap screw is manufactured to ANSI/ASME B18.3 in A2 stainless steel (304 grade). ANSI/ASME B18.3 specifies the imperial series of socket head cap screws, driven by an internal hexagon socket,...RRP From £5.57RRP From £5.57 -
1/4" UNC X 1/2" Hex Socket Countersunk ASME B18.3 A2 Stainless Steel
In stockThis 1/4" UNC x 1/2" socket cap screw is manufactured to ASME B18.3 in A2 stainless steel (304 grade). ASME B18.3 specifies the imperial series of socket head cap screws, driven by an internal hexagon socket,...RRP From £5.58RRP From £5.58 -
1/4" UNC X 1.1/4" Socket Button B18.3 A2 Stainless Steel
In stockThis 1/4" UNC x 1.1/4" socket button head screw is manufactured to B18.3 in A2 stainless steel (304 grade). B18.3 specifies a low domed head with a hexagon socket drive, for a neat, low-profile finish where...RRP From £4.18RRP From £4.18 -
1/4" UNC X 1.1/4" Hexagon Socket Cap Screw ANSI/ASME B18.3 A2 Stainless Steel
In stockThis 1/4" UNC x 1.1/4" socket cap screw is manufactured to ANSI/ASME B18.3 in A2 stainless steel (304 grade). ANSI/ASME B18.3 specifies the imperial series of socket head cap screws, driven by an internal hexagon socket,...RRP From £6.00RRP From £6.00
Stainless steel socket screws in A2 (304) and A4 (316), from M1.2 to M30, plus imperial UNC, UNF, BSW and BA sizes. All drive with a hex key (Allen key), and many A4 sizes come in both A4-70 and the stronger A4-80.
- Socket cap screws (ISO 4762) from M1.2 to M30, and low head cap screws (DIN 7984 and DIN 6912) where headroom is tight.
- Button head screws (ISO 7380-1) with a low dome profile, and flanged button head screws (ISO 7380-2) with a built-in washer face.
- Countersunk socket screws (ISO 10642) that sit flush in a countersunk hole.
- Shoulder screws (ISO 7379) in A2.
Looking for headless screws? See socket set screws, also called grub screws. For tamper-resistant fixings, see security screws.
Choose A4 for coastal, marine and salt-exposed environments.
Frequently asked questions
What socket screws does Simfix stock?
Socket cap screws (ISO 4762) from M1.2 to M30, low head cap screws (DIN 7984), button head screws (ISO 7380-1) from M2 to M16, flanged button head screws (ISO 7380-2), countersunk socket screws (ISO 10642) from M2 to M24 and shoulder screws (ISO 7379). All take a hex key, and most styles come in both A2 (304) and A4 (316).
Sizes, grades and pack quantities vary by product type. Check the individual product listing for the exact specification and current availability.