Bowmalloy BOW36379 Hex Head Cap Screw 7/16-20 X 1 in Grade 9

Product Description

The BOWMALLOY BOW36379 is a fully threaded hex head cap screw designed for high-strength fastening applications in industrial, mechanical, and structural assemblies. Manufactured from Grade 9 steel with a Bowma-Guard zinc-plated clear chromate finish, this screw delivers superior tensile strength and corrosion resistance compared to lower-grade fasteners. The 7/16-20 thread specification indicates a fine-thread profile, which provides greater thread engagement and improved resistance to loosening under vibration. At 1 inch in length under the head, this fastener suits close-tolerance installations where a compact, high-strength connection is required. Sold in packages of 50 units.

This cap screw is suited for precision mechanical assemblies, automotive components, heavy equipment, and industrial machinery where fine-thread Grade 9 fasteners are specified. The fully threaded shank maximizes thread engagement across the full grip length, making it appropriate for thinner material stacks and applications requiring maximum clamping force over a short fastener length. The Bowma-Guard finish provides additional protection in environments with mild corrosion exposure.

Key Features

• Grade 9 steel construction for high tensile strength exceeding standard Grade 5 and Grade 8 requirements
• Fully threaded shank for maximum thread engagement and clamping force
• 7/16-20 fine-thread profile improves resistance to vibration-induced loosening
• Bowma-Guard zinc-plated clear chromate finish for corrosion resistance
• Inch measurement system with 1 inch length under head
• Packaged in quantities of 50 for efficient job-site and shop use

Compatibility

Designed as a high-strength replacement or new-installation fastener for any application specifying a 7/16-20 fully threaded hex head cap screw in Grade 9 steel with inch-standard thread dimensions.

Installation Notes

Installation should be performed by qualified mechanical or industrial tradespeople familiar with fastener torque specifications for Grade 9 fine-thread hardware. Always consult the equipment manufacturer or applicable engineering standards for correct torque values before installation. Ensure mating threads are clean, undamaged, and free of debris prior to assembly. Use appropriate hex wrenches or socket tools rated for the fastener grade.