Value Collection 440005 3/8-16 Unc Grade 2 Hex Lock Nut 100 Pack

Product Description

The VALUE COLLECTION 440005 is a 3/8-16 UNC Grade 2 hex lock nut featuring an expanding flex top design for reliable thread locking in fastening applications. Constructed from steel with a cadmium-plated finish, this nut resists corrosion and meets MIL-S-7742 military specifications. The expanding flex top provides a prevailing torque locking action without the need for adhesives or secondary locking hardware. Sold in a package quantity of 100, this nut is suited for maintenance, repair, and assembly work across mechanical, HVAC, plumbing, and electrical trade applications where a secure, vibration-resistant fastener is required.

The 440005 hex lock nut is appropriate for use in both residential and commercial settings wherever a 3/8-16 UNC threaded connection requires positive locking. Common applications include equipment mounting, panel assembly, and mechanical system fastening. The cadmium-plated finish makes it a suitable choice for environments where mild corrosion resistance is needed. Licensed tradespeople and assembly technicians working on structural or mechanical connections will find this nut a straightforward drop-in solution for standard 3/8-16 UNC bolt patterns.

Key Features

• Expanding flex top design provides prevailing torque locking without adhesives
• 3/8-16 UNC thread form for compatibility with standard inch-series fasteners
• Grade 2 steel construction meets general-purpose mechanical strength requirements
• Cadmium-plated finish for corrosion resistance in service environments
• Meets MIL-S-7742 military specification standards
• Package quantity of 100 supports bulk maintenance and assembly tasks

Compatibility

Designed as an OEM-style replacement and general-use hex lock nut for any application requiring a 3/8-16 UNC threaded fastener with a prevailing torque locking feature.

Installation Notes

Installation is performed by qualified tradespeople or assembly technicians using standard open-end, box-end, or socket wrenches sized for a 3/8-16 UNC hex nut. De-energize and depressurize any system before working on fastened connections. Do not reuse prevailing torque lock nuts after removal, as the locking force of the flex top degrades with repeated cycling. Consult applicable mechanical codes and equipment manufacturer guidelines for required fastener torque ranges.