Value Collection BDNA-MPA996393 Hex Lock Nut 1/2-13

Product Description

The VALUE COLLECTION BDNA-MPA996393 is a distorted-thread hex lock nut designed to resist loosening under vibration and dynamic loads. Manufactured from Grade 2 steel with a zinc-plated finish for basic corrosion resistance, this 1/2-13 UNC/UNF nut uses a mechanically deformed thread profile — rather than a nylon insert or chemical adhesive — to create prevailing torque. At 7/16 inches high with 3/4 inches across the flats, it fits standard hex tooling. Right-hand thread direction conforms to conventional fastener orientation. Suitable for general mechanical assembly work across industrial, construction, and maintenance applications.

This nut is used in general-purpose fastening applications where a low-profile, all-metal locking mechanism is required. Distorted-thread lock nuts are preferred in environments where elevated temperatures would compromise nylon-insert performance. Common installation scenarios include structural assemblies, equipment mounting, and mechanical component retention where fasteners are subject to vibration or cyclic loading. Sold individually with a minimum order quantity of 10 units.

Key Features

• Distorted thread locking style creates prevailing torque without nylon or adhesive — suitable for higher-temperature environments
• 1/2-13 thread size, UNC and UNF fastener standard
• Grade 2 steel construction for general-purpose strength requirements
• Zinc-plated finish provides basic corrosion and oxidation resistance
• Right-hand thread direction — standard orientation for most mechanical assemblies
• 7/16 inches height and 3/4 inches across flats — compatible with standard hex tooling

Compatibility

Designed as a general-purpose replacement or service nut for 1/2-13 UNC/UNF threaded fastener applications in standard inch-measurement assemblies.

Installation Notes

Installation is performed using a standard hex wrench or socket sized to 3/4 inches across the flats. De-energize or shut down any equipment before servicing fastened assemblies. Distorted-thread lock nuts are single-use by design — once the prevailing torque is overcome, the locking effectiveness is reduced and replacement is recommended. Torque to values specified by the equipment manufacturer or applicable structural standards.