Bowmalloy BOW-36012-1 Hex Head Cap Screw 1/4-20 X 3-1/4 in

Product Description

The BOWMALLOY BOW-36012-1 is a Grade 9 steel hex head cap screw with a 1/4-20 thread size and a 3-1/4 inch length under the head. It features partial threading and a Bowma-Guard protective finish. This fastener is designed for high-strength bolted connections where superior clamp load and corrosion resistance are required. Typical users include mechanical contractors, industrial maintenance technicians, and structural assembly crews working with metal-to-metal joints that demand a step above Grade 8 performance.

This screw is suited for heavy-duty industrial and commercial applications including machinery assembly, structural brackets, and equipment mounting. The partial threading provides a smooth shank section that improves shear resistance in bolted joints. The Bowma-Guard finish offers added protection against corrosion in demanding service environments. It is sold in packages of 50 units, making it practical for both single-task repairs and production-line assembly work.

Key Features

• Grade 9 steel construction for high-strength fastening applications
• 1/4-20 UNC thread size for wide compatibility with standard tapped holes and nuts
• 3-1/4 inch length under head accommodates thicker material stacks
• Partial threading preserves a smooth shank for improved shear load performance
• Bowma-Guard finish provides corrosion resistance in harsh service conditions
• Sold in 50-piece packages for efficient stocking and job-site use

Compatibility

Designed as an OEM-style replacement and general-purpose hex head cap screw compatible with standard 1/4-20 tapped holes and hex nuts in inch-system fastener applications.

Installation Notes

Installation should be performed by a qualified mechanic or maintenance technician using a standard hex wrench or socket set sized for the fastener head. Always ensure mating threads are clean and free of debris before driving the screw. Torque to the fastener manufacturer or equipment OEM specification for Grade 9 hardware. Do not substitute this fastener in safety-critical structural assemblies without verifying the required grade and finish for the application.