High strength structural set series, bolt&nut&washer set, ASTM a325 a490, ASTM a563, ASTM f436
Standard: ANSI B18.2.1; ANSI B18.2.2;
Dia.: 1/2"-1 1/2";
Length:1 1/4"-8";
Metarial/Grade: bolt-ASTM a325/a490; nut-ASTM a563; washer-ASTM f436
Surface treatment: plain ,black oxygenation, zinc plated, hot dip galvanizing, etc.
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