Value Collection SNI2031-100BX 5/16-18 Slotted Hex Lock Nut

Product Description

The VALUE COLLECTION SNI2031-100BX is a slotted hex lock nut designed for use with 5/16-18 UNC inch-series fastener threads. Manufactured from Grade 2 steel with a bright uncoated finish, this nut delivers reliable mechanical locking in standard structural and mechanical assemblies. It measures 17/64 inches in height with a width across flats of 1/2 inch and features a right-hand thread direction. The slotted design allows use with a cotter pin or safety wire to prevent loosening under vibration or cyclical loading. Plumbers, HVAC technicians, electricians, and general trade mechanics reach for this nut whenever a cost-effective, inch-series locking fastener is called for.

This slotted hex lock nut is suited for residential and light commercial mechanical installations where UNC thread fasteners are standard. Common applications include equipment mounting, pipe hanger hardware, electrical panel supports, duct framing, and general mechanical assembly work. The bright uncoated finish is appropriate for indoor or protected environments. This nut is sold individually but is subject to a minimum order quantity of 10 pieces.

Key Features

• 5/16-18 UNC right-hand thread for compatibility with standard inch-series fasteners
• Slotted hex design accepts cotter pin or safety wire to resist vibration-induced loosening
• Grade 2 steel construction provides adequate strength for general mechanical use
• Bright uncoated finish suited for dry or protected indoor environments
• 17/64 inch height and 1/2 inch width across flats for standard hex wrench fitment

Compatibility

Designed as a standard UNC inch-series slotted hex lock nut for use with 5/16-18 threaded fasteners in general mechanical, HVAC, plumbing, and electrical trade applications.

Installation Notes

Install with a standard 1/2-inch open-end or box wrench. De-energize or shut down any system before servicing fastened assemblies. When using a cotter pin for positive locking, align the nut slots with the fastener hole before inserting the pin and bend the pin ends to secure. Do not overtighten Grade 2 hardware beyond the torque range appropriate for the fastener diameter and material.