Truck Wheel Studs, Bolts & Nuts – truck Screw，STR Rear 140 bolt FP-122

This bolt for STR rear.

The main function is to fix the tire,Good studs can bring you more security,our main products are Truck studs and nut,King pin,Spring pin,Gears,Truck Universal joint,etc.The product materials are mainly 40cr, 42crmo, the hardness of 40cr is 10.9-12.9, and the hardness of 42crmo can reach above 12.9. In the heat treatment process, the product is calcined at high temperature in a mesh belt furnace and then put into an oil pool for quenching. After the heat treatment process, the quality and reliability of the product can be well guaranteed.