B58 Crank Bolts
With a tensile strength of 170,000 psi, these alloy steel screws are stronger than Grade 8 steel screws. Length is measured from under the head.
Zinc-plated steel screws resist corrosion in wet environments.
The OE B58 Crank pulley fasteners may be fine for OE properties, and does not work well. The Crank pulley is a 4-piece design friction welded together and specifically uses the 4 bolts to hold it all together. We are seeing the pulleys come apart and is dangerous. Our fasteners are a must for big power B58 cars.
- Specifically designed to support the load and tensile requirements of increased output.
- Required to reach ASTM conformance certification. All Material must conform to AMS batch raw materials.
- Thread engagement and shank is optimized for each given bolt in its specific location.
- Meet or exceed a minimum allowable tensile strength of 170kpsi.
This kit contains 4 bolts, use red loctite and torque to 55ft/lb