Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories - Part 1: Steel flanges, PN designated; German version EN 1092-1:2001— 71 стр.
Mechanical properties of fasteners made of carbon steel and alloy steel - Part 1: Bolts, screws and studs (ISO 898-1:1999); German version EN ISO 898-1:1999— 28 стр.
Geometrical Product Specifications (GPS) - Indication of surface texture in technical product documentation (ISO 1302:2002); German version EN ISO 1302:2002— 51 стр.
Mechanical properties of corrosion-resistant stainless steel fasteners - Part 1: Bolts, screws and studs (ISO 3506-1:1997); German version EN ISO 3506-1:1997— 19 стр.