Value Collection 525032PS M4x0.7 K-lock Hex Nut Zinc

Product Description

The VALUE COLLECTION 525032PS is a zinc-plated steel K-Lock hex nut with an integrated external tooth lock washer, designed for metric fastening applications. The K-Lock design combines a standard hex nut with a serrated external tooth washer bonded to the bearing face, providing vibration-resistant clamping without a separate loose washer. The M4x0.7 metric thread and 7 mm width across flats make it compatible with standard M4 fastener hardware. The zinc plating provides corrosion resistance for general-purpose use. Licensed tradespeople and assembly technicians working on light mechanical, electrical panel, or equipment installations will find this a practical one-piece fastening solution.

This K-Lock nut is suited for residential and commercial equipment assembly where vibration loosening is a concern. Typical applications include control panel assembly, sheet metal enclosures, electrical junction boxes, and light-duty mechanical assemblies requiring metric M4 fasteners. The external tooth washer bites into the mating surface on torque-down, resisting rotational loosening under dynamic loads. Minimum order quantity is 100 pieces per order, sold as a single package quantity of one unit.

Key Features

• Integrated external tooth lock washer eliminates need for a separate loose washer
• M4x0.7 metric thread for compatibility with standard M4 metric hardware
• Zinc plating provides general-purpose corrosion resistance
• 7 mm width across flats fits standard metric hex tooling
• 8.2 mm washer diameter provides secure bearing surface engagement
• One-piece K-Lock design speeds installation in high-volume assembly work

Compatibility

Designed as a standard metric M4x0.7 K-Lock fastener for use in general mechanical, electrical, and equipment assembly applications requiring an integrated external tooth lock washer.

Installation Notes

Installation is performed by hand-threading onto an M4x0.7 male fastener and tightening with a standard 7 mm hex wrench or nut driver. Ensure the mating surface is clean and free of coatings that may reduce the grip of the external teeth. Do not reuse K-Lock nuts after removal, as the tooth engagement and locking performance degrade once the serrations have been compressed. Always de-energize electrical assemblies before working inside enclosures or panels.