Percy's High Performance Split Lock Bolt Kit

The Percy's High Performance Split Lock bolt kit is a locking fastener kit for engine builders and enthusiasts. It is designed to stay tight under heat cycles and vibration. Each bolt has a built-in set pin and a split thread end. The pin expands the threads against the mating threads to create a friction lock, so you don't need separate lock washers, clips or thread-locking compounds.

Key Features:

• Split Lock friction-lock design: a set pin in the bolt expands the threads to resist loosening from vibration, heat and torque changes.
• Easy installation: install the bolt like a standard bolt, then tighten the set pin with a hex key (Allen wrench) to lock it in place.
• Easy removal: loosen the set pin and back the bolt out.
• Reusable: built from high-quality alloys so the same fastener can be reinstalled and re-locked.
• Convenient kits: each kit is packaged for a specific engine application, so the hardware is ready to install.

Percy's High Performance Split Lock bolt kits suit header, manifold and other engine fastening jobs where bolts tend to work loose. Fasteners that stay tight mean less re-torquing and less worry about leaks or loose parts. Check your kit's specific part number for its thread size, length, head style, material and finish. Use anti-seize on stainless steel fasteners.