Simfix

5/16" UNF American Wing Nut ASME B18.6.9 A2 10 Pack Stainless Steel

SKU 314UFAMA2516-D

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RRP: £12.16

Pack size: Pack of 10 Pack of 50

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This 5/16" UNF wing nut is manufactured to ASME B18.6.9 in A2 stainless steel (304 grade). ASME B18.6.9 specifies a nut with two projecting wings in place of hexagon flats, for hand tightening without a spanner. The wings allow the nut to be run on and released by hand, suiting assemblies that are dismantled often or where a spanner cannot reach.

Typical applications

Quick-release and frequently dismantled assemblies
Guards, covers, and access panels
Marine, camping, and temporary structures
Test rigs and adjustable fittings

Available in packs of 10 to 50, with free next-day UK delivery on orders over £50 and 30-day no-quibble returns. For coastal, marine, or chloride-rich environments, Simfix A4 (316 grade) equivalents are available.

RRP: £12.16

Typical applications

Quick-release and frequently dismantled assemblies
Guards, covers, and access panels
Marine, camping, and temporary structures
Test rigs and adjustable fittings

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5/16" UNF American Wing Nut ASME B18.6.9 A2 Stainless Steel

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Complete the fixing

Matching nuts and washers in the same size, grade and thread as this nut.

This item

5/16" UNF American Wing Nut ASME B18.6.9 A2 Stainless Steel

Washer

5/16" Flat Washer, Table 3 Light BS 3410 A2 Stainless Steel Pack size

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Typical applications

Quick-release and frequently dismantled assemblies
Guards, covers, and access panels
Marine, camping, and temporary structures
Test rigs and adjustable fittings

*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	Wing nut, American form
Standard	ASME B18.6.9
Material	A2 stainless steel (304)
Thread size	5/16"
Drive type	Wing
Surface finish	Plain (no plating)
Recommended use	Workshop

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.

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