Socket head cap screw (SHC, BTR or Allen type), diameter 8mm, ISO 12.9 quality (120 kilos) and black steel. Length 40, 50, 60, 70 or 80mm, standard thread (125). thread 28mm. For roll cage, suspensions parts, gear box and other applications with high constraints. Minimum order : 4 pieces.
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Applications : oll cage, suspensions parts, gear box and other applications with high constraints
Black steel (othen a iso 10.9 or 12.9 charasteristic)
partial thread : 28mm
The 12.9 class is the highest class (resistance to shearing). In the common language it correspond to 120 kilos/mm². The iso class is mentioned on the head of the bolt. It correspond to the 12 class for the nuts.
Recommandations : Spray some lubricant (type WD40) after installation to prevent from surface oxidation. You can slow down the screw using a thread locker resin (strong or medium depending on the needs).