EN 14399-6High strength structural bolt assembly for preload sixth parts: chamfering washer
EN 14399-9High strength structural bolt assembly for preload sixth parts: chamfering washer
GB/T 32076.6High-strength structural bolting assemblies for preloading-Part 6:Plain chamfered washers
NF E25-801-6High strength structural bolt assembly for preload sixth parts: chamfering washer
NF E25-801-9High strength structural bolt assembly for preload sixth parts: chamfering washer