Value Collection R52001584 Hex Lock Nut 1-1/8-7 Grade 8

Product Description

The VALUE COLLECTION R52001584 is a nylon insert hex lock nut designed to maintain a secure threaded connection in high-vibration and heavy-load applications. Made from Grade 8 steel with a yellow zinc dichromate finish, this nut provides strong corrosion resistance alongside the high tensile strength required for demanding fastening work. The nylon insert creates interference with the mating threads, resisting loosening without damaging the bolt or stud. At 1-11/64 inches in height and 1-5/8 inches across flats, it is sized for 1-1/8-7 UNC thread applications. Licensed trades and maintenance professionals working with structural assemblies, heavy equipment, or industrial installations will find this nut suitable for critical fastening points.

This hex lock nut is intended for use in applications where thread loosening from vibration or dynamic loading is a concern. The 1-1/8-7 UNC thread size and Grade 8 steel construction make it appropriate for heavy-duty mechanical assemblies across industrial, construction, and equipment maintenance settings. Right-hand thread direction follows standard convention for most fastening applications. Sold individually, it is suited for single-point replacements or low-quantity service work.

Key Features

• Nylon insert locking style resists vibration-induced loosening without thread damage
• Grade 8 steel construction provides high tensile and proof load strength
• Yellow zinc dichromate finish offers corrosion protection in exposed or mildly harsh environments
• 1-1/8-7 UNC thread size with right-hand thread direction
• 1-11/64 inch height and 1-5/8 inch width across flats for standard wrench fitment
• Inch measurement system, UNC fastener standard

Compatibility

Designed as an OEM-style replacement or service fastener for assemblies requiring a 1-1/8-7 UNC right-hand thread hex lock nut in Grade 8 steel.

Installation Notes

Installation should be performed by a qualified mechanic or maintenance technician familiar with fastener torque requirements for the specific assembly. De-energize, de-pressurize, or otherwise make safe any equipment before replacing fasteners in load-bearing or pressurized assemblies. Use a properly sized open-end or box wrench matched to the 1-5/8 inch across-flats dimension. Nylon insert lock nuts are generally considered single-use fasteners and should not be reused once removed from a torqued application.