Value Collection 444030PS Hex Nut 1/2-20 Grade L9 Steel

Product Description

The VALUE COLLECTION 444030PS is a 1/2-20 UNF hex nut manufactured from Grade L9 steel with a Zinc Yellow Dichromate, Cadmium, and Waxed finish. It features a right-hand thread and is designed for high-strength fastening applications where corrosion resistance and secure torque retention are critical. The L9 material grade designates a high-proof-load alloy steel nut, suitable for use with high-tensile fasteners in demanding mechanical assemblies. The multi-layer finish provides both corrosion protection and a lubricated surface for consistent clamp load. Licensed trades and industrial maintenance technicians working with heavy mechanical and structural assemblies will find this nut suited to their requirements.

This hex nut is used in mechanical, structural, and equipment-assembly applications requiring a fine-thread UNF specification. The 1/2-20 thread pitch is common in automotive, heavy equipment, and industrial machinery contexts where fine-thread engagement provides improved vibration resistance. The 3/4-inch across-flats dimension accepts a standard 3/4-inch wrench or socket. It is sold individually and is intended for use in applications where the mating fastener and joint design call for Grade L9 strength and a corrosion-resistant, wax-lubricated finish.

Key Features

• Grade L9 alloy steel construction for high proof-load performance
• 1/2-20 UNF right-hand thread for fine-thread engagement and vibration resistance
• Zinc Yellow Dichromate finish with Cadmium and Wax coating for corrosion protection and consistent clamp load
• 3/4-inch across-flats dimension fits standard 3/4-inch wrench or socket
• 1/2-inch nut height provides full thread engagement depth

Compatibility

Designed as a replacement or service hex nut for mechanical assemblies requiring a 1/2-20 UNF, Grade L9 steel fastener with a Zinc Yellow Dichromate, Cadmium, and Waxed finish. This nut does not meet military specifications.

Installation Notes

Installation should be performed by a qualified mechanic or maintenance technician familiar with high-strength fastener procedures. Verify that the mating bolt or stud is also rated to Grade L9 or equivalent before assembly, as mismatched grades can compromise joint integrity. Apply torque per the applicable equipment service documentation; do not use impact tools without confirming suitability for the joint design. Inspect threads on both the nut and mating fastener for damage before installation.