Value Collection 1-THN-50C Hex Lock Nut 1/2-13 Stainless

Product Description

The VALUE COLLECTION 1-THN-50C is a 1/2-13 UNC hex lock nut with a nylon insert locking mechanism, manufactured from grade 18-8 stainless steel with a bright, uncoated finish. The nylon insert collar deforms around mating threads under torque, creating friction-based resistance to loosening caused by vibration or thermal cycling. At 0.3125 inches high with a 0.75-inch across-flats dimension, this fastener suits standard hex tooling and fits flush in most hex pocket applications. Plumbers, HVAC technicians, electricians, and general trade contractors use nylon insert lock nuts wherever stainless corrosion resistance is required alongside reliable thread retention.

This lock nut is suited for use in corrosive or moisture-prone environments where carbon steel fasteners would oxidize and seize. Typical applications include mechanical equipment assemblies, pipe support hardware, electrical enclosure mounting, HVAC equipment frames, and structural fastening in coastal or chemical-exposure settings. The 18-8 stainless alloy provides solid resistance to rust and mild chemical exposure without the added cost of 316-grade material. Right-hand thread direction matches the overwhelming majority of standard inch-series fastener applications.

Key Features

• Nylon insert locking collar resists vibration-induced loosening without adhesive or secondary locking hardware
• Grade 18-8 stainless steel construction provides corrosion resistance in wet and outdoor environments
• 1/2-13 UNC thread size for compatibility with standard inch-series bolts and threaded rod
• Bright, uncoated finish maintains dimensional tolerances and is suitable for contact with stainless hardware
• Right-hand thread direction conforms to standard UNC fastener practice
• Width across flats of 0.75 inches accepts standard 3/4-inch hex wrenches and sockets

Compatibility

Designed as a standard UNC 1/2-13 inch-series hex lock nut for use with any matching 1/2-13 threaded bolt, stud, or threaded rod requiring a nylon insert locking nut.

Installation Notes

Installation requires a 3/4-inch hex wrench or socket. Apply fastener torque in accordance with the equipment manufacturer specifications and applicable mechanical codes. Do not reuse a nylon insert lock nut after removal, as the nylon collar loses its locking effectiveness once fully engaged and backed off. Ensure mating threads are clean and free of debris before installation to achieve full thread engagement.