Bowmalloy BOW36027 Hex Head Cap Screw 5/16-18 X 3/4 in Grade 9

Product Description

The BOWMALLOY BOW36027 is a Grade 9 steel hex head cap screw with a 5/16-18 thread size and a 3/4-inch length under the head. Fully threaded from tip to head, it delivers maximum thread engagement in through-bolt and thin-material applications. The Bowma-Guard zinc-plated clear chromate finish provides corrosion resistance for use in demanding environments. This fastener is sold in a package quantity of 100 and is used by millwrights, pipefitters, HVAC technicians, electricians, and general contractors wherever a high-strength inch-series hex cap screw is required.

The BOW36027 is suited for structural and mechanical assemblies in both commercial and industrial settings. Its Grade 9 rating places it above the more common Grade 5 and Grade 8 fasteners, making it appropriate for high-load bolted connections. The fully threaded body and standard 5/16-18 UNC thread form ensure compatibility with common hex nuts, lock nuts, and threaded inserts found throughout HVAC equipment, electrical enclosures, and mechanical systems.

Key Features

• Grade 9 steel construction for elevated tensile and proof load ratings compared to Grade 5 and Grade 8
• 5/16-18 UNC thread fully threaded along entire shank length for maximum thread engagement
• 3/4-inch length under head suits standard through-bolt and tapped-hole applications
• Bowma-Guard zinc-plated clear chromate finish provides corrosion resistance
• Inch measurement system with UNSPSC Code 31161501 for procurement and catalog alignment
• Packaged in quantities of 100 for shop stock and service van replenishment

Compatibility

Designed as a standard inch-series hex head cap screw for use with 5/16-18 UNC threaded holes, nuts, and inserts in mechanical, HVAC, electrical, and general industrial assemblies.

Installation Notes

Installation is performed by the applicable licensed trade or mechanical contractor depending on the assembly. De-energize and lock out equipment before fastening components in electrical or HVAC enclosures. Use a properly sized hex wrench or socket to avoid rounding the head. Do not mix metric hardware with this inch-series fastener.