Material:Carbon Steel
Type:High Tensile Tunnel Bolt with HDG Surface
Connection:Common Bolt
Head Style:Hex
Standard:DIN, ANSI, GB, JIS, BSW, GOST
Grade:5.8，6.8，8.8
Application:Building
Finish:Black
Raw Material:Q235, 35#, 45#, 35CrMo, 42CrMo, 40cr
Certificate:ISO9001:2008
Std No.:Uic,DIN,BS,GB,JIS,etc
Surface Finish:Plain, Black, Phosphate, Zinc , HDG
Sizes:3/8", 1", 1 3/8", 1 1/2" or Others
Inspection:Internal and 3rd Parties
