DIN 93 Tab Washers
Stainless steel A2Stainless steel A4
DIN 93 covers tab washers with a single long lug — after tightening, the lug is bent against the nut flat to lock it mechanically. We supply DIN 93 tab washers across a range of metric sizes.
Also known as: locking tab washers, single lug washers.
Materials & strength
Positive mechanical lock
The bent tab bears on the nut flat, giving a visible mechanical stop against loosening.
Frequently asked
How does a DIN 93 tab washer work?
The washer's long tab is bent down over a component edge to anchor the washer, and one face is then bent up against a flat of the nut or bolt head, physically preventing rotation rather than relying on friction.
Need DIN 93 in a non-standard size or material?
Send us your drawing — specials quoted within 24 hours.