Self-Clinching Self-Locking Nuts (Series CRT, CRTS & CRTA)
CRT series fasteners provide a low-installed-cost solution where a clinching fastener with repeat locking torque is required. The design allows for greater reusability and minimizes the possibility of thread damage of the mating screw.
CRT Series Self-Clinching Self-Locking Nuts are engineered for applications requiring a permanent clinched thread with repeat locking torque and reliable screw retention. Their design improves reusability while reducing the risk of damage to the mating screw thread during repeated assembly. The range includes CRT carbon steel with black dry film lubricant over zinc phosphate, CRTS 300 series stainless steel with black dry film lubricant, and CRTA 7075-T6 aluminium. Suitable for use in cold-rolled steel, these fasteners feature internal 3B or metric 6H threads, with CRT and CRTS locking performance equivalent to applicable NASM25027 specifications.