DIN 934
DIN 934 - Hexagon nuts with metric coarse and fine pitch thread
Hexagon nuts with metric coarse and fine pitch thread, product grades A and B. Superseded by ISO 4032, but the dimensions are not identical: ISO 4032 revises the width across flats of M10, M12, M14 and M22 and raises the height of most sizes. Off the shelf parts are still commonly supplied to this older specification. Both bearing faces are chamfered; the washer face form is a separate order option.
Outdated standard