Product Description
Unbrako tensile specifications are 10,000 psi highThe ultimate in fastener traceability - from its original manufacturing lot, raw material chemistry to performance test results.er than indThis design change alone is responsible for doubling fatigue life at critical head-shank juncture.
ustry standard - while maintaining theProvides a smooth form that distributes stress and increases fatigue life of thread run-out as much as 300% in certain sizes.
core hardness range.An Unbrako development that doubles the fatigue life compaThe only method to detect thread laps is that random samples of rolled threads are etched in heated acid, and then examined under a stereo microscope.red to flat root thread forms.The flow lines of the material are continuous, resulting in increased strength, better installation ability, and a longer product life.Roll threading compresses the material s grain flow and enhances fatigue resistance.