Simfix
1/4" UNC X 1.1/2" Hexagon Socket Cap Screw ANSI/ASME B18.3 A4 10 Pack Stainless Steel
- RRP
- £16.20
This 1/4" UNC x 1.1/2" 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, making it the correct fitting for UNC and UNF threaded assemblies. The internal hex socket allows high torque to be applied with a short key in confined spaces. Imperial threads are not interchangeable with metric, so this size suits equipment originally built to UNC or UNF.
Typical applications
- Maintenance of imperial-threaded plant and machinery
- American and legacy British equipment repair
- Counterbored joints in imperial assemblies
- Tooling and fixtures built to imperial standards
Available in packs of 10 to 50, with free next-day UK delivery on orders over £50 and 30-day no-quibble returns.
- RRP
- £16.20
This 1/4" UNC x 1.1/2" 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, making it the correct fitting for UNC and UNF threaded assemblies. The internal hex socket allows high torque to be applied with a short key in confined spaces. Imperial threads are not interchangeable with metric, so this size suits equipment originally built to UNC or UNF.
Typical applications
- Maintenance of imperial-threaded plant and machinery
- American and legacy British equipment repair
- Counterbored joints in imperial assemblies
- Tooling and fixtures built to imperial standards
Available in packs of 10 to 50, with free next-day UK delivery on orders over £50 and 30-day no-quibble returns.
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Complete the fixing
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1/4" UNC X 1.1/2" Hexagon Socket Cap Screw ANSI/ASME B18.3 A4 Stainless Steel
Total for selected
This 1/4" UNC x 1.1/2" 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, making it the correct fitting for UNC and UNF threaded assemblies. The internal hex socket allows high torque to be applied with a short key in confined spaces. Imperial threads are not interchangeable with metric, so this size suits equipment originally built to UNC or UNF.
Typical applications
- Maintenance of imperial-threaded plant and machinery
- American and legacy British equipment repair
- Counterbored joints in imperial assemblies
- Tooling and fixtures built to imperial standards
Available in packs of 10 to 50, with free next-day UK delivery on orders over £50 and 30-day no-quibble returns.
*Photos, diagrams and other images are for illustration only and may not show the exact item supplied. Simfix reserves the right to alter or replace any photo, diagram or image at any time at its sole discretion.
**Orders that cannot be split will be rounded up to the next full pack or box quantity.
Simfix reserves the right to change quantities, stock levels and prices at any time. We accept no liability for the accuracy of dimensional data, DIN/ISO references, technical data, customs tariff codes or EAN barcodes.
| Fastener style | Socket cap screw with hex socket drive |
|---|---|
| Standard | ANSI/ASME B18.3 |
| Material | A4 stainless steel (316) |
| Thread size | 1/4" |
| Head type | Socket Cap Head |
| Drive type | Hex socket |
| Surface finish | Plain (no plating) |
| Recommended use | Marine |
RoHS and REACH compliant.
How do I choose between A2 and A4 stainless steel?
A2 (304) stainless steel suits most indoor, outdoor and workshop jobs. Choose A4 (316) marine grade for coastal, marine, poolside or other chloride-rich environments.
How do I make sure I order the right size?
Check the size in the product title and the standard, material and dimensions in the Product Specification tab. In M8 x 30, M8 is the thread diameter and 30 is the length in millimetres. See our size guide if you need more help.
When will my order arrive?
Orders placed before 3:30pm Monday-Friday are typically dispatched the same working day and every order is tracked. Next-day delivery is free over £50, or £5.50 below that threshold. Full options are shown at checkout.
What if I order the wrong item?
Email contact@simfix.com within 30 days of delivery with your order number. We will help arrange a refund or replacement. See our refunds information for the full process.
Is checkout secure?
Yes. Checkout is protected by SSL encryption and payments are processed through Shopify's secure checkout and supported payment providers. Simfix does not store your full card details.
