Re-Usable and Security Nuts

Pin-Hex Self-Tapping Security Screw

Pin-Hex self-tapping security screws combine thread-forming capabilities, often in an "AB" thread pattern, with a tamper-resistant hexagonal drive containing a central pin. This configuration allows for direct insertion into un-tapped substrates while necessitating specialized bit tools for actuation, thereby preventing unauthorized extraction. The hex drive provides reliable torque capacity without the requirement for pre-drilled tapping, optimizing assembly speed. They are widely specified for securing external electrical access covers, machinery panels, and public infrastructure components where medium-torque structural connections and tamper deterrence are essential.