Lock Thread™
Studs, Bolts, and Inserts

Lock Thread™
A uniquely-threaded bolt for use on manifolds, exhaust systems and other areas affected by heat and vibration.

• Features a unique, trilobular self-locking thread design
• Combats back-off even under heat and vibration
• Can be removed and reused
• Produces uniform clamping loads
• Works well in all metals
• High temp alloys meet stringent EPA requirements
• High temp alloys withstand temperatures of more than 600º C

Heat and vibration are the greatest enemies of fastened joints, leading to loss of clamp force typically blamed on “nut or bolt back-off.”

Tests have shown the Lock Thread™ bolt provides exceptional vibration resistance and consistent torque tension control, making it ideal for common use on commercial vehicle frame fastener applications and highly stressed joints.

Since its launch, more than 600 million Lock Thread™ units have been sold into the transportation market place, including major commercial vehicle customers. There have been no reported failures.

Sizes are available up to M16 with length up to 100 millimeters long. Larger sizes will be supported as markets develop.