Hexagon head bolt ASME B18.2.1, blue passivated zinc plated GR5 steel (A2K)
ASME B18.2.1 steel GR5 zinc-plated UNF
SCR-HCS-GR5-(ZN)-5/16_24X1 1/2
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The mechanical properties are regulated in SAE J429
The thread length is based on standard ASME B18.2.1
1 INCH (in) = 25.4 mm
Standard thread tolerance in accordance with ASME B1.1 = 2A (for external thread)
Datasheets(X)