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8.8 grade: HRC22~32
10.9 grade: HRC32~39
12.9 grade: HRC39~43
we sugget to 3 option
1.Zinc plating material:1018A hardness broken torque:2.5~3.0Kg suggest assemble torque:2.0Kg around
2..Nickel plating material:1018A hardness broken torque:3.5~4.0Kg suggest assemble torque:2.8Kg around
3.Unplating material:sus304 broken torque:1.5~2.0Kg suggest assemble torque:1.2Kg around1.
M6xP1.0x16 Hex head flange bolt ,material SCM435 HRC:33~38, TORQUE TEST REPORT DATA : NO LESS THAN 205kgf-cm
We have over 50 years of experience
in designing,research and developing
of any spec and any quantity,we also
have more than 50 years of experience with manufacturing background.
We specialize in Screw,Bolt,Washer,
Nut,Rivet,Ball Plunger,Self tapping
thread insert,Low height hex socket cap screw,Multi-station customized screw
and many more.
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North Road, Guishan District, Taoyuan City, Taiwan