Bowmalloy BOW36356 Hex Head Cap Screw 3/8-24 X 1-1/2 in Grade 9

Product Description

The BOWMALLOY BOW36356 is a Grade 9 steel hex head cap screw with a 3/8-24 UNF thread and a 1-1/2 inch length under head. This is a partially threaded fastener, meaning the shank is left unthreaded below the head for a portion of its length, providing a stronger clamping shank in bolted joint applications. The Bowma-Guard zinc-plated clear chromate finish provides corrosion resistance for general industrial and mechanical installations. This fastener is used by millwrights, maintenance technicians, electricians, and mechanical contractors wherever high-strength inch-series fasteners are required.

Grade 9 hex head cap screws are specified in demanding mechanical assemblies where standard Grade 5 or Grade 8 hardware is not sufficient. This screw is suited for industrial equipment, structural brackets, machinery frames, and heavy-duty mechanical assemblies that call for a fine-thread 3/8-24 fastener with superior tensile and proof load ratings. The partial thread design is appropriate for applications requiring a smooth shank to pass through a clearance hole before engaging a tapped bore or nut.

Key Features

• Grade 9 steel construction for high tensile strength beyond standard Grade 8 specifications
• 3/8-24 UNF fine thread provides better thread engagement and vibration resistance compared to coarse thread
• Partially threaded shank suits clearance-hole-through-bolt configurations
• Bowma-Guard zinc-plated clear chromate finish for corrosion protection in general service environments
• Inch measurement system, 1-1/2 inch length under head
• Sold in quantities of 100 per package

Compatibility

Designed as a high-strength replacement or specification fastener for industrial and mechanical assemblies requiring a 3/8-24 UNF partially threaded hex head cap screw in Grade 9 steel.

Installation Notes

Install and torque with a standard hex wrench or socket sized for a 3/8-24 hex head cap screw per applicable equipment manufacturer specifications. De-energize and lock out all equipment before replacing or installing fasteners in live mechanical or electrical assemblies. Verify thread engagement meets minimum requirements for the tapped material to prevent stripping under load. Fastener installation in structural or pressure-bearing applications should conform to applicable ASME or ASTM standards.