hat
Kèk komen estanda n' a tout chaje twal, tankou DIN933, DIN934, DIN912, DIN 6926, ISO5832, etc. Kesyon sa te poze taille se ant M3 pou M20.
eng
Some common standard are all stocked, like DIN933, DIN934， DIN912, DIN 6926, ISO5832, etc. Mainly size are between M3 to M20.