1/4-28 UNJF Grade 2 Hex Lock Nut with Expanding Flex Top MPN:21FC-428

The 1/4-28 UNJF Grade 2 Hex Lock Nut with Expanding Flex Top is the ideal fastening solution for a wide range of industries and applications that require robust, secure connections. With a Unified Coarse (UNC) thread type and a Class 2A screw head, this nut offers exceptional strength and flexibility in various lock nut configurations. Engineers trust it to hold parts together with great precision, offering an economical, dependable alternative to conventional methods like set screws, pins or welds in numerous situations. The expanding flex top on this hex locknut allows for adjustable torque, providing exceptional holding power under extreme circumstances while allowing some movement when the applied torque is lowered making it particularly useful in applications that involve vibration, thermal expansion, and contraction where ordinary lock nuts may fail or work loose. Overall, this high-quality Grade 2 stainless steel fastener guarantees secure, reliable connections across numerous industries such as automotive, aerospace, construction, machinery and many others - delivering both superior performance and long-lasting durability at an affordable cost.