Bowmalloy BOW36122 Hex Cap Screw 1/2-13 X 7in Grade 9

Product Description

The BOWMALLOY BOW36122 is a partially threaded hex head cap screw engineered for high-strength fastening applications where Grade 9 steel is specified. Measuring 1/2-13 thread size with a 7-inch length under head, this fastener carries a Bowma-Guard zinc-plated clear chromate finish that provides corrosion resistance in demanding environments. The partial thread design is intentional, allowing the unthreaded shank to bear shear loads rather than thread engagement alone. This screw is installed by mechanical contractors, millwrights, equipment assemblers, and field technicians working on structural or mechanical connections that require a high-grade inch-series fastener.

This fastener suits heavy-duty mechanical assemblies, structural joints, and equipment mounting applications where Grade 9 tensile strength is required by specification. The 1/2-13 coarse thread pattern is a standard UNC profile, making it compatible with common hex nuts and tapped holes across a wide range of industrial and trade applications. The partial threading leaves a clean shank section ideal for close-tolerance through-bolt applications and pivot points.

Key Features

• Grade 9 steel construction for high tensile strength in demanding mechanical assemblies
• Partially threaded shank allows unthreaded body to carry shear loads
• 1/2-13 UNC coarse thread - standard inch-series profile
• 7-inch length under head accommodates thick structural members or stacked assemblies
• Bowma-Guard zinc-plated clear chromate finish for corrosion resistance

Compatibility

Designed for use with standard 1/2-13 UNC hex nuts, flat washers, and lock washers in inch-series fastener assemblies across industrial, mechanical, and structural applications.

Installation Notes

Installation requires a standard hex drive socket or wrench sized for a 1/2-inch hex head cap screw. Torque to the value specified by the equipment manufacturer or structural engineer for Grade 9 fasteners at this diameter - do not substitute a torque value not provided in project documentation. Power down and de-energize or de-pressurize any equipment before fastener service. Follow applicable mechanical codes and manufacturer assembly instructions.