Bowmalloy BOWMP36137 Hex Head Cap Screw 9/16-12 X 3 in

Product Description

The BOWMALLOY BOWMP36137 is a Grade 9 steel hex head cap screw designed for high-strength fastening applications in industrial, construction, and heavy equipment settings. It features a 9/16-12 thread size and a 3-inch length under the head with partial threading, making it well suited for clamping thicker assemblies where a smooth shank provides added shear strength. The Bowma-Guard finish provides corrosion resistance for demanding environments. Licensed tradespeople and industrial maintenance technicians typically install this fastener where structural integrity and torque retention are critical.

This cap screw is used in a wide range of industrial and commercial applications including structural steel connections, machinery assembly, heavy equipment maintenance, and infrastructure fabrication. The inch-system sizing and Grade 9 rating make it appropriate for high-load joints that exceed the capabilities of Grade 5 or Grade 8 hardware. It is commonly specified by mechanical contractors, millwrights, and maintenance technicians working on heavy-duty bolted assemblies.

Key Features

• Grade 9 steel construction for high proof load and tensile strength requirements
• 9/16-12 UNC thread for compatibility with standard inch-system hardware
• 3-inch length under head with partial threading for clamping-force retention in thick assemblies
• Bowma-Guard finish provides corrosion resistance in harsh or outdoor environments
• Hex head drive accepts standard hex wrenches and impact tools

Compatibility

Designed as an OEM-style replacement or direct-spec fastener for applications requiring a 9/16-12 UNC hex head cap screw with Grade 9 steel and partial threading in inch-measurement assemblies.

Installation Notes

Installation should be performed by a qualified mechanic, millwright, or maintenance technician familiar with high-strength fastener procedures. Always de-energize and lock out equipment before fastener replacement on operating machinery. Use a calibrated torque wrench and refer to the applicable engineering specification or fastener manufacturer torque table for Grade 9 hardware at this thread size. Inspect mating threads and bearing surfaces for damage before installation.