This Grade 5 header bolt kit has self-locking nuts to hold your exhaust system securely to your headers. Stover lock nuts eliminate loss of the "old-style" lock washers because they're not needed.
Headlock™ Bolts eliminate the need for lock washers, Period. That's because each Headlock™ Bolt features 24 equally-spaced, stainless steel teeth serrations that bite into and hold onto the attaching surface–eliminating the need for lock-washers.Features:12 per PackageIncludes a ball-head/hex-key socket-installation tool that makes it easy to get them started410 stainless steelMinimum 180,000 PSI ..
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