Complete the fixing

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

M5 X 16 Wing Screw A2 Stainless Steel

M5 hexagon nut A2 stainless DIN 934 M5 Hexagon Full Nut DIN 934 A2 Stainless Steel

M5 nyloc nut A2 stainless DIN 985 M5 Nylon Insert Nut DIN 985 A2 Stainless Steel

M5 flat washer Form A A2 stainless DIN 125-A M5 Flat Washer, Form A DIN 125-A A2 Stainless Steel

Total for selected

This M5 x 16mm wing screw is manufactured in A2 stainless steel (304 grade). The wings give enough purchase to tighten and release the screw by hand, suiting guards, covers, and settings that are adjusted often and would otherwise need a driver each time.

Typical applications

  • Guards, covers, and panels removed regularly
  • Tool-free adjustment and quick-release fittings
  • Test equipment, jigs, and temporary fixings
  • Display, exhibition, and marine 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.

*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 styleWing screw
MaterialA2 stainless steel (304)
Thread sizeM5
Length16 mm
Drive typeWing
Surface finishPlain (no plating)
Recommended useWorkshop

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.

  • Free next-day delivery over £50

  • Orders Before 3:30pm Ship Today

  • Secure SSL Checkout

  • No-Return Refunds