Value Collection 1-N-31F Hex Lock Nut 5/16-24 Ss

Product Description

The VALUE COLLECTION 1-N-31F is a 5/16-24 UNF hex lock nut with a nylon insert locking mechanism, manufactured from grade 18-8 stainless steel. The nylon insert compresses against the bolt threads when tightened, creating resistance to loosening from vibration and dynamic loads without damaging the mating fastener. At 11/32 inches in height and 1/2 inch across the flats, this nut fits standard 5/16-24 fine-thread bolts in a compact envelope. The right-hand thread direction follows standard installation practice. HVAC, plumbing, and electrical contractors use this style of fastener when stainless corrosion resistance is required alongside positive thread retention.

This nut is appropriate for indoor and outdoor mechanical assemblies where vibration, moisture exposure, or corrosive environments make standard hex nuts unsuitable. Common applications include equipment mounting brackets, electrical enclosure hardware, pump and blower assemblies, conduit support structures, and pool equipment frames. The 18-8 stainless grade provides good resistance to rust and mild chemical exposure across a broad range of service environments encountered in trade work.

Key Features

• Nylon insert locking style resists loosening from vibration without thread damage
• Grade 18-8 stainless steel construction for corrosion resistance
• 5/16-24 UNF fine-thread designation for precise thread engagement
• Right-hand thread direction per standard installation practice
• Height of 11/32 inches and 1/2 inch width across flats for compact fitment
• Sold individually; minimum order quantity of 100 units

Compatibility

Designed as a standard nylon-insert hex lock nut for use with 5/16-24 UNF fine-thread fasteners in applications requiring 18-8 stainless steel hardware.

Installation Notes

Installation does not require specialized trade licensing but should follow applicable mechanical and electrical code requirements when used in code-governed assemblies. De-energize and lock out any equipment before replacing or tightening fasteners on electrical or mechanical components. Use a standard 1/2-inch wrench or socket to drive this nut to snug contact; do not over-torque, as excessive force can extrude or damage the nylon insert and reduce its locking effectiveness. Nylon-insert lock nuts are generally considered single-use and should be replaced rather than reused after removal.