Form B Washer Sizes

Bolt size inside diameter outside diameter thickness.

Form b washer sizes. Washer size chart staff posted on october 20 2006 washer size chart. The forms go from a to g and dictate the outside diameter and thickness of the flat washers. American metric washers size table metric washers per ansi b18 22m metric flat washers per. Specification din 125 this table define the dimensional limits of metric washers din 125 metric hex head screw iso hex head bolts iso 4014 iso 4016 iso 4017 iso 4018.

Metric standard flat washer bs 4320 form a the most popular through to form g showing dimensions. The british standard for metric series metal washers bs4320 written in 1968 coined the term form. B the 0 734 inch 1 156 inch and 1 469 inch outside diameters avoid washers which could be used in coin operated devices. Normal diameter light thickness.

In the images below you can see what the measurements are for the most common washers we stock. Non standard sizes and materials and special washers made to order for fast dispatch uk worldwide. Normal diameter normal thickness. Simply put each washer has to have certain dimensions to be classed in a type of form so no matter where you buy from or where the item was manufactured all washers designated the same form will have the same measurements.

Steel stainless steel and brass heavy flat washer bs 4320 form b bzp galvanised grade a2 finishes can t find what you re looking for. Washer knowledge flat washer size comparisons. Form a is identical to the more popular german specification din125. Type is not to be confused with form but often is.

Please give us a call on 01493 440261 or email us on info hubble co uk. American national standard type a plain washers preferred sizes ansi asme b18 22 1 1965 r1998 a nominal washer sizes are intended for use with comparable nominal screw or bolt sizes. High quality form a form b form c and form d washers available from fastenright ltd in a range of sizes and materials from fastenright from m2 to m24 and higher.