Standard GB30 GB5782 GB5783 HG20613
DIN931 DIN933
ASME B 18.2.1
Size M5～M64
1/4～4
Length 40mm～1500mm
Grade 4.8 5.8 6.8 8.8 10.9 12.9
Material Carbon steel、Stainless steel、355 35K 45# 40Cr 35CrMo 42CrMo
Surface black, zinc plated, color zinc, hot dipped galvanized, dacromet
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