Self-locking keeps tools like screw jacks from unwinding under load. Acme Screw Thread Profile by Wizard191 CC-BY-SA 3.0 ...

A simple solution is to coat the threads of the loose fastener with a vibration-resistant sealer such as Duro`s Lock-It. This ”liquid lockwasher” is a resin that fills spaces around the ...

We’ve all been there – that last stubborn screw, the one thing between you and some real progress on a repair or restoration. It’s stuck tight with thread-locking fluid, and ...

These fasteners pull the two elements together tightly and lock by means of an overcenter linkage. Some lever-actuated fasteners have coil springs or an adjustable threaded hook.

Ideal for heavy applications, TimberLOK is a screw for code-compliant truss and rafter connections. With a sharp point and sturdy threads, it is offered in lengths from 2½ inches to 10 inches.