Externally threaded fasteners with locking devices use the same techniques as locknuts. Prevailing-torque locking screws employ distorted threads, interference fits, inserts, or a chemical adhesive ...

Shim-lock mounts residential and commercial wiring devices flush, regardless of wall condition. Fasten it onto screw in mounting slot, and tighten to the desired depth. Shim-lock tabs secure the screw ...

These fasteners should be used when repeated access to a component is necessary. When selecting these fasteners, important factors include strength of construction, smoothness of operation, and ease ...

The ML-1100 mortised electromagnetic locks are ideal for many different applications. These mortise locks can be utilised with the Dortronics DPA door pulls for an attractive architectural appearance, ...