Bowmalloy BOW36616 Hex Nut 9/16-18 Grade 9 Steel

Product Description

The BOWMALLOY BOW36616 is a Grade 9 steel hex nut with a 9/16-18 thread size, designed for high-strength fastening applications where standard hardware-grade fasteners are not sufficient. This nut carries a Bowma-Guard zinc-plated clear chromate finish that provides corrosion resistance in demanding service environments. With a hardness rating of 26-36 HRC and a right-hand thread orientation, the BOW36616 meets ANSI/ASME B18.2.2 dimensional standards. It is installed by maintenance technicians, mechanical contractors, and field service professionals working on heavy-duty assemblies that require reliable, high-load threaded connections.

This hex nut is suited for industrial, commercial, and heavy equipment applications where Grade 9 fastener specifications are called out by an engineer or equipment OEM. Typical use cases include structural assemblies, drivetrain components, and load-bearing mechanical joints. The 9/16-18 fine thread pitch provides increased thread engagement strength compared to coarse thread equivalents, making it appropriate for applications subject to vibration or dynamic loading.

Key Features

• Grade 9 steel construction with 26-36 HRC hardness for high-load fastening applications
• 9/16-18 fine right-hand thread per ANSI/ASME B18.2.2 dimensional standard
• Bowma-Guard zinc-plated clear chromate finish for corrosion resistance
• 7/8 inches across flats, compatible with standard 7/8-inch wrenching tooling
• 0.483 inches nominal height provides positive thread engagement depth
• UNSPSC Code 31161727 for procurement system compatibility

Compatibility

Designed as an OEM-style replacement or service fastener for assemblies specifying a 9/16-18 Grade 9 hex nut per ANSI/ASME B18.2.2. Verify thread class and torque specification with the assembly drawing before installation.

Installation Notes

Installation of Grade 9 fasteners should be performed by qualified mechanical technicians familiar with high-strength fastener procedures. Always de-energize and lock out equipment before servicing any fastened assembly. Use a calibrated torque wrench and follow the torque specification provided by the equipment or assembly manufacturer. Do not substitute a lower-grade nut in any application where Grade 9 hardware is specified.