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Steel materials for High strength Fasteners

Updated:2021-01-04 Attention:191


Steel is the most common material for fasteners. For high strength fasteners, it is always important to select steel materials.  Below chat is the most common materials for high strength fasteners as a guide.

 

Commodity

Property Grade

Material

Standard

fitable specifications

Bolt

10.9

42CrMo4, 34CrMo4

EN 10083-3


42CrMo,35CrMo,40CrNiMoA



B7

ASTM A193


20MnTiB


≤M24

35VB


≤M30

8.8

20MnTiB


≤M24

42CrMo4, 34CrMo4

EN 10083-3


42CrMo,35CrMo



35VB


≤M30

C45E,C35E

EN 10083-2

≤M12

45, 35


≤M12

Nut

8/10

C45E,C35E

EN 10083-2


42CrMo4, 34CrMo4

EN 10083-3


42CrMo,35CrMo



45, 35



Washer/ heavy washer

300HV(300HV~370HV)

C45E,C35E

EN 10083-2


45, 35



 

As for 12.9 materials, 42CrMo, ASTM A193 B7 are the most common materials. Please contact us for further technical details.

 

thread rod