DIN 25201-4:2021-11

Действует

Design guide for railway vehicles and their components - Bolted joints - Part 4: Securing of bolted joints — 67 стр.

ICS

21.060.30 Washers, locking elements / Шайбы, контрящие элементы

21.060.10 Bolts, screws, studs / Болты, винты, шпильки