Pemhex is a self-clinching prevailing torque lock-nut from Penn Engineering, with the integrated nylon insert there to resist screw loosening in service due to vibration and thermal cycling. “The ...

Please provide your email address to receive an email when new articles are posted on . SAN ANTONIO — Locking screws showed decreased survivorship when used in locking plates that were bent at a ...

Inserts are classified as two general types: those held in place by external threads and those that use some means other than threads (knurls, grooves, interference fit) for their holding power.