DIN440 standard flat washers are designed for use in timber constructions. There are type R and type V, which has a round hole or square hole. Its usually made of low carbon steel, medium carbon steel, aluminium or stainless steels, SUS304, 18-8, SUS316, brass, copper and bronze.
Supply size could be from M5 up to M56, with various surface treatment options, black oxide, black zinc, white, yellow galvanizing, dacromet, hot dipper galvanizing, etc.
DIN440 Flat Washer, Type R, with round hole
All dimensions in mm
DIN440 Flat Washer, Type V, with square hole
