Washers – Zinc – Form A (Box Qty)

Zinc Form A washers are the standard flat washer you will find on building sites, in workshops, and in general assembly work across the country. Available in sizes from M4 through to M20, these washers are plated in Trivalent Chromium (Cr3) zinc, which gives a clean, consistent finish and a reasonable level of corrosion resistance for most everyday fixing tasks. Whether you are spreading the load under a bolt head, protecting a surface from damage, or making up the spacing on a through-bolt fixing, Form A washers earn their keep.

Form A refers to the British Standard designation for a normal series flat washer. The outer diameter and thickness are sized to suit standard bolts and nuts without being oversized. If you need a larger bearing surface, Form C (the wide series) is the one to reach for, but for most standard bolt-and-nut assemblies, Form A is exactly what is specified.

Where Zinc Form A Washers Get Used

These washers turn up in just about every trade. Carpenters use them with coach bolts through structural timber. Fabricators fit them under hex bolts on light steelwork. Electricians use them on panel fixings. Plumbers use them on bracket assemblies. If you are bolting two things together and want the connection done properly, there is a good chance a zinc Form A washer is involved somewhere.

Box Quantities

Buying in box quantities makes sense when you are running through washers at any kind of pace. Box quantities vary by size, with smaller sizes typically running to 1000 or 1250 per box, and larger sizes like M16 and M20 supplied in quantities of 100 or 200. That means you are not overpaying for packaging on the big stuff, and you are not running short on the small stuff mid-job. The zinc Form A washers are competitively priced, so stocking a range of sizes is a straightforward decision.