High strength structural bolt&nut&washer set(ASTM a325/a490 ASTM a563 ASTM f436)

Standard: ASME B18.2.6; ASME B18.2.3.7M; ASME B18.2.2;

Dia.: 1/2”-1 1/2”,M12~M36

Length:1 1/4”-10”,30-250mm;

Material/Grade: bolt-ASTM a325/a490; nut-ASTM a563; washer-ASTM f436

Surface treatment:  plain, black oxygenation, zinc plated, hot dip galvanizing, etc.