Bowmalloy BOW36377 Hex Head Cap Screw 7/16-20 Grade 9

Product Description

The BOWMALLOY BOW36377 is a fully threaded hex head cap screw engineered for high-strength fastening applications in industrial, mechanical, and structural assemblies. It features a 7/16-20 thread size with a 3/4-inch length under the head, manufactured from Grade 9 steel - a high-strength alloy that exceeds the tensile and proof-load requirements of Grade 8. The Bowma-Guard zinc-plated clear chromate finish provides corrosion resistance suitable for demanding service environments. Licensed mechanics, millwrights, and industrial maintenance technicians will encounter this fastener in precision bolted joints requiring fine thread engagement and elevated clamp load.

This cap screw is suited for use in high-vibration mechanical assemblies, heavy equipment, and power transmission applications where fine-thread fasteners are specified. The 7/16-20 fine thread pitch offers greater thread engagement per inch compared to coarse-thread equivalents, improving torque-to-clamp-load efficiency in ferrous base materials. Packaged in quantities of 50 per unit, this fastener supports shop stock replenishment and job-site applications alike.

Key Features

• Grade 9 steel construction - exceeds Grade 8 proof load and tensile strength requirements for high-stress joints
• 7/16-20 fine thread pitch for improved clamp load and vibration resistance
• Fully threaded shank along the 3/4-inch body length under head
• Bowma-Guard zinc-plated clear chromate finish for corrosion protection
• Inch measurement system; conforms to UNSPSC Code 31161501
• Sold in packs of 50 - suitable for shop stocking and bulk service work

Compatibility

Designed as an OEM-style and aftermarket replacement hex head cap screw for any application specifying a 7/16-20 x 3/4-inch fully threaded Grade 9 fastener in inch-series bolted assemblies.

Installation Notes

Installation should be performed by a qualified mechanic or technician following the torque specifications published by the equipment or joint designer for Grade 9 fasteners. Ensure mating threads are clean and free of debris before installation. Apply thread lubricant or thread-locking compound only as specified by the equipment manufacturer. Always follow applicable industry standards and equipment service manuals when specifying or replacing high-strength fasteners.