Multi Application Harden Hex Bolt with HRC 35 ~ 58
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Main Products: 4.8 grade, 8.8 grade, 10.9 grade, 12.9 grade Hex Bolts, Countersunk Bolts, Button Head Bolts, Expansion Bolts with matched nuts and washers. We can produce goods with different standards like GB, DIN, ANSI, BC, JIS and ISO, and have gained good reputation from USA, Turkey, Brasil, Japan, Argentina etc.