Value Collection HNCWI0-40-100BX 4-40 K-lock Hex Nut 100 Pack

Product Description

The VALUE COLLECTION HNCWI0-40-100BX is a 4-40 UNC K-Lock hex nut with an integrated conical lock washer, manufactured from zinc-plated steel. The conical washer teeth bite into the mating surface when torqued, resisting vibration loosening without a separate locking element. The washer diameter measures 5/16 inches and the width across flats measures 7/32 inches. This fastener is suited for electricians, panel builders, electronics assemblers, and mechanical technicians working with 4-40 threaded hardware in light-duty assemblies, enclosures, and control panels. Sold in a box quantity of 100 pieces per order increment.

This nut is used in applications requiring a compact, self-locking threaded fastener on 4-40 UNC thread forms. Typical scenarios include securing terminal blocks, small brackets, PCB standoffs, and enclosure hardware in electrical and light mechanical assemblies. The zinc plating provides baseline corrosion resistance for indoor and mildly protected environments. The minimum order quantity is 100 pieces, making this packaging appropriate for service stock, shop inventory, and production line use.

Key Features

• Integrated conical lock washer eliminates the need for a separate locking element
• 4-40 UNC thread standard for compatibility with standard inch-series threaded hardware
• Zinc plating provides corrosion resistance for indoor service environments
• 5/16 inch washer diameter suits compact fastening layouts
• 7/32 inch width across flats for standard hex driver tooling
• Packaged in 100-piece increments for shop and production inventory

Compatibility

Designed as a standard replacement or service-stock hex nut for 4-40 UNC threaded assemblies in electrical enclosures, control panels, and light mechanical hardware applications.

Installation Notes

Installation is performed by electricians, panel builders, and mechanical assemblers using standard hex drivers or nut drivers sized for 7/32 inch across flats. De-energize any assembly before installing or removing fasteners in live electrical enclosures per applicable NEC guidelines. Do not over-torque; the conical washer teeth engage at rated torque and excessive force can strip the 4-40 thread or flatten the locking teeth. Inspect mating surfaces for debris before installation to ensure proper washer engagement.