Tolerances for fasteners - Part 3: Plain washers for bolts, screws and nuts; product grades A and C (ISO 4759-3:2000); German version EN ISO 4759-3:2000— 8 стр.
Mechanical and performance requirements of case hardened and tempered metric thread rolling screws (ISO 7085:1999); German version EN ISO 7085:1999— 9 стр.