Bowmalloy BOW36601 Hex Nut 1/4-20 Grade 9 Steel

Product Description

The BOWMALLOY BOW36601 is a Grade 9 steel hex nut with a 1/4-20 thread size, designed for high-strength fastening applications where standard hardware falls short. It features a zinc-plated clear chromate finish, sold under the Bowma-Guard coating designation, which provides corrosion resistance in demanding environments. The right-hand thread and 7/16-inch across-flats measurement conform to ANSI/ASME B18.2.2 standards. Hardness is rated at 26-36 HRC, making this nut suitable for high-load assemblies in mechanical, industrial, and trade applications. It is installed by millwrights, maintenance technicians, pipefitters, and experienced tradespeople working with structural or load-bearing fastener assemblies.

This hex nut is suited for use in industrial equipment, mechanical assemblies, and structural installations that require Grade 9 fastener strength. Its ANSI/ASME B18.2.2 compliance makes it a direct fit in assemblies engineered to that standard. The Bowma-Guard zinc-plated clear chromate finish adds a layer of protection in environments with moderate moisture or chemical exposure. Typical applications include machinery mounting, frame assembly, and equipment maintenance in commercial and industrial settings.

Key Features

• Grade 9 steel construction with 26-36 HRC hardness for high-load applications
• Zinc-plated clear chromate (Bowma-Guard) finish for corrosion resistance
• Right-hand thread, 1/4-20 thread size
• 7/16 inch across flats, 0.220 inch height
• Meets ANSI/ASME B18.2.2 fastener standard
• UNSPSC Code 31161727 for procurement and catalog systems

Compatibility

Designed as a high-strength Grade 9 replacement hex nut for assemblies requiring 1/4-20 right-hand thread fasteners conforming to ANSI/ASME B18.2.2.

Installation Notes

Installation should be performed by qualified tradespeople familiar with high-strength fastener assemblies. Always de-energize and isolate any equipment before replacing fasteners in live systems. Use a properly sized 7/16-inch wrench or socket to avoid rounding the flats. Follow applicable torque specifications from the equipment manufacturer or governing engineering standard for Grade 9 hardware.