Bowmalloy BOWMP36114 Hex Head Cap Screw 1/2-13 X 3.5 in

Product Description

The BOWMALLOY BOWMP36114 is a Grade 9 steel hex head cap screw sized at 1/2-13 thread by 3.5 inches under the head, with partial threading and a Bowma-Guard protective finish. Grade 9 fasteners deliver high tensile strength suited for heavy-duty structural and mechanical assemblies. The Bowma-Guard finish provides corrosion resistance for demanding service environments. This screw is installed by millwrights, maintenance technicians, ironworkers, and mechanical contractors working on industrial and commercial equipment assemblies.

This cap screw is intended for use in bolted connections where high-strength, inch-series fasteners are required. Partial threading leaves a smooth shank section near the head, which helps align mating components and distributes shear loads more effectively than fully threaded fasteners. Typical applications include structural steel connections, heavy equipment mounting, machinery bases, and industrial fabrication work where Grade 9 strength ratings are specified by design or code.

Key Features

• Grade 9 alloy steel construction for elevated tensile and proof load ratings
• 1/2-13 UNC thread size in inch measurement system
• 3.5 inches under-head length accommodates deeper grip requirements
• Partially threaded shank improves shear resistance and component alignment
• Bowma-Guard finish provides corrosion protection in industrial environments
• Hex head drive accepts standard hex socket and open-end wrench tooling

Compatibility

Designed as a high-strength inch-series replacement or replacement-specification fastener for applications requiring 1/2-13 UNC Grade 9 hex head cap screws with partial threading.

Installation Notes

Installation should be performed by qualified millwrights, ironworkers, or mechanical technicians familiar with high-strength fastener torque procedures. Always consult the applicable engineering specification or structural drawing for required torque values, as Grade 9 fasteners have specific proof load requirements. Inspect mating threads and bearing surfaces for damage before installation. Follow applicable codes and standards such as ASME B18.2.1 for hex cap screw dimensional compliance.