Value Collection 52591856-100 Hex Lock Nut 1-1/2-6 Unc

Product Description

The VALUE COLLECTION 52591856-100 is a heavy-duty hex lock nut with a nylon insert, designed to resist loosening under vibration and dynamic loads. It features a 1-1/2-6 UNC right-hand thread and is manufactured from Grade 2 steel with a zinc-plated finish for basic corrosion resistance. Standing 1-39/64 inches high with a width across flats of 2-3/16 inches, this nut is sized for large-diameter fastener assemblies. It is installed by licensed tradespeople and maintenance professionals working on structural, mechanical, and industrial equipment requiring reliable thread locking without adhesives.

This hex lock nut is suited for use in general industrial, mechanical, and trade applications where a reusable, torque-resistant fastener is required. The nylon insert engages the bolt threads to create a friction-based lock that maintains clamp load through vibration cycles. Typical applications include equipment mounting, framework assembly, and mechanical linkages in HVAC, plumbing, and general mechanical systems. The zinc plating provides light-duty corrosion protection suitable for dry or mildly humid environments.

Key Features

• Nylon insert locking style resists loosening under vibration without thread-locking compounds
• 1-1/2-6 UNC right-hand thread for standard inch-series fastener compatibility
• Grade 2 steel construction provides reliable strength for general mechanical applications
• Zinc-plated finish offers light corrosion resistance in dry or mildly humid conditions
• Width across flats of 2-3/16 inches suits standard heavy hex wrench sizes
• Reusable design allows disassembly and reassembly while retaining locking function

Compatibility

Designed as a standard UNC inch-series hex lock nut for use with 1-1/2-6 threaded bolts and studs in general industrial and mechanical fastener assemblies.

Installation Notes

Installation is performed by mechanics, millwrights, or licensed tradespeople using standard heavy hex wrenches or sockets rated for the fastener size. Ensure mating bolt threads are clean and free of debris before installation. The nylon insert is a single-use locking element by design; inspect the insert for wear if reusing the nut. Torque to the specification listed in the applicable equipment or structural documentation.