Bowmalloy BOW36325 Hex Head Cap Screw 5/16-24 X 1/2 in Grade 9

Product Description

The BOWMALLOY BOW36325 is a fully threaded hex head cap screw designed for high-strength fastening in demanding trade and industrial applications. Manufactured from Grade 9 steel and finished with BOWMALLOY's Bowma-Guard zinc-plated clear chromate coating, this fastener delivers superior corrosion resistance compared to standard Grade 5 or Grade 8 hardware. The 5/16-24 fine-thread pattern provides tight clamping force with reduced thread pitch for vibration-resistant assemblies. At 1/2 inch length under head, it suits close-tolerance joint stacks common in mechanical, HVAC bracket, and equipment mounting applications. Licensed tradespeople and maintenance technicians rely on Grade 9 hardware where standard zinc hardware is undersized for the load.

This cap screw is suited for residential and commercial mechanical installations where high-tensile fine-thread fasteners are specified. Typical use cases include equipment frame assembly, motor mounting brackets, panel hardware, and structural component fastening where torque retention under vibration is critical. The fully threaded shank ensures full thread engagement across thin stock and short joint lengths. Sold in a package quantity of 100, this fastener is appropriate for bulk installation work or shop stock replenishment.

Key Features

• Grade 9 steel construction for higher tensile strength than Grade 5 or Grade 8 equivalents
• Bowma-Guard zinc-plated clear chromate finish provides corrosion resistance in exposed or moist environments
• 5/16-24 fine-thread (UNF) pattern for superior clamping and vibration resistance
• Fully threaded shank maximizes thread engagement in short joint applications
• 1/2 inch length under head suits close-clearance fastening in mechanical assemblies
• Package quantity of 100 supports bulk installation and shop inventory stocking

Compatibility

Designed as a high-strength replacement or OEM-style fastener for applications requiring 5/16-24 UNF hex head cap screws in Grade 9 steel with a corrosion-resistant finish.

Installation Notes

Installation should be performed by a qualified mechanic or licensed tradesperson using a properly sized hex wrench or socket driver. Always confirm thread engagement depth and joint material compatibility before final torque. Do not mix Grade 9 fasteners with lower-grade nuts or threaded inserts, as mismatched hardware grades can lead to joint failure. Follow applicable equipment manufacturer specifications and relevant codes when fastening structural or load-bearing assemblies.