Value Collection 31-NTU-50C Hex Lock Nut 1/2-13 Ss

Product Description

The VALUE COLLECTION 31-NTU-50C is a heavy hex lock nut with a nylon insert, designed to resist loosening under vibration and dynamic loads. Manufactured from 18-8 stainless steel with a bright, uncoated finish, it offers reliable corrosion resistance in wet, chemical-exposed, and outdoor environments. The 1/2-13 UNC thread size with right-hand direction covers a wide range of standard fastening applications. At 17/32 inches high and 7/8 inches across the flats, this nut fits standard hex tooling and installs with common wrenches. It is suited for maintenance, mechanical assembly, plumbing support structures, and equipment mounting where a vibration-resistant fastener is required.

This nylon insert lock nut is appropriate for light industrial, commercial mechanical, and trade service applications. The nylon insert engages the bolt thread as the nut is driven home, creating friction-based locking without requiring thread adhesive or secondary locking hardware. It is a common choice for HVAC equipment mounting, pipe support brackets, electrical panel frames, and structural mechanical assemblies where vibration or thermal cycling could otherwise back out a standard hex nut.

Key Features

• Nylon insert locking style resists loosening from vibration and dynamic loading without adhesive
• 18-8 stainless steel construction provides corrosion resistance in wet and outdoor environments
• Bright, uncoated finish — no risk of coating incompatibility in stainless fastener assemblies
• 1/2-13 UNC right-hand thread meets standard inch-series fastener dimensions
• Heavy hex body offers increased wrench engagement and torque capacity over standard hex

Compatibility

Designed as a standard 1/2-13 UNC nylon insert hex lock nut compatible with any 1/2-13 inch-series threaded bolt or stud in stainless or standard steel assemblies.

Installation Notes

Licensed mechanics, plumbers, electricians, and HVAC technicians all commonly install nylon insert lock nuts as part of equipment and support structure assembly. De-energize or de-pressurize any system before fastener service. Drive the nut with a standard hex wrench or socket; the nylon insert requires slightly higher running torque than a plain nut, which is normal. Do not reuse a nylon insert lock nut after removal, as the insert deforms during initial installation and will not provide reliable locking force on a second use.