Value Collection B52001632 Hex Lock Nut 1-3/8-6 Grade 8

Product Description

The VALUE COLLECTION B52001632 is a 1-3/8-6 UNC hex lock nut with a nylon insert locking mechanism, manufactured from Grade 8 steel with a zinc yellow dichromate finish. The nylon insert deforms around the mating thread to create a prevailing-torque lock that resists loosening from vibration and dynamic loads. At 1-37/64 inches tall with 2 inches across the flats, this heavy hex geometry suits high-load bolted assemblies. The zinc yellow dichromate coating provides corrosion resistance beyond standard zinc plating. This fastener is intended for use by mechanical contractors, millwrights, and industrial maintenance professionals working on structural and heavy-equipment applications.

This nut is suited for high-strength bolted connections where vibration resistance is required. The 1-3/8-6 UNC thread size and Grade 8 material rating make it appropriate for heavy machinery, structural steel connections, agricultural equipment, and industrial fabrication applications. Its right-hand thread direction is standard for the vast majority of bolted assemblies. The nylon insert style lock nut is a common choice when a reusable, non-permanent locking solution is needed without adhesive thread-locking compounds.

Key Features

• Nylon insert locking style provides vibration-resistant prevailing torque without adhesive compounds
• Grade 8 steel construction rated for high-load, high-strength bolted assemblies
• Zinc yellow dichromate finish delivers enhanced corrosion resistance over standard zinc plating
• 1-3/8-6 UNC right-hand thread conforms to Unified National Coarse fastener standards
• 2 inches across the flats accommodates standard heavy hex tooling
• Height of 1-37/64 inches provides full nylon insert engagement depth for secure locking

Compatibility

Designed as a standard UNC prevailing-torque hex lock nut for use with 1-3/8-6 Grade 8 or compatible threaded fasteners in inch-measurement bolted assemblies.

Installation Notes

Installation should be performed by a qualified mechanic or millwright familiar with high-strength fastener torque requirements. Always power down and de-energize or relieve pressure from the assembly before replacing fasteners on active equipment. Use the correct 2-inch hex tooling to avoid rounding the flats. Nylon insert lock nuts are rated for limited reuse — inspect the nylon insert for deformation or wear before reinstalling a previously torqued nut.