Bowmalloy BOW36063 Hex Head Cap Screw 3/8-16 Grade 9

Product Description

The BOWMALLOY BOW36063 is a Grade 9 steel hex head cap screw designed for high-strength fastening applications in industrial, mechanical, and structural assemblies. It features a 3/8-16 thread size and a 3-1/4 inch length under the head with partial threading, allowing the unthreaded shank to bear shear loads while the threaded section provides positive clamping force. The Bowma-Guard zinc-plated clear chromate finish provides corrosion resistance in moderate-exposure environments. This fastener is installed with a standard hex socket or open-end wrench and is suited for bolted connections requiring elevated tensile strength beyond standard Grade 5 or Grade 8 specifications.

Grade 9 hex head cap screws are used in heavy equipment, agricultural machinery, hydraulic assemblies, and industrial fabrication where high proof load and tensile strength are required. The partial thread configuration is common in through-bolt applications where a smooth shank is needed to span a clearance hole before engaging a tapped bore or nut. These fasteners are sold in a package quantity of 50, making them practical for production assembly, maintenance shops, and service fleets that consume fasteners in volume.

Key Features

• Grade 9 steel construction for high tensile and proof load performance
• 3/8-16 unified coarse thread for broad compatibility with standard tapped holes and nuts
• 3-1/4 inch length under head with partial threading for shear-load shank applications
• Bowma-Guard zinc-plated clear chromate finish for corrosion resistance
• Inch measurement system, UNSPSC Code 31161501
• Package quantity of 50 per unit for volume use

Compatibility

Designed as a standard inch-series hex head cap screw compatible with 3/8-16 tapped holes, hex nuts, and locknuts conforming to unified coarse thread standards.

Installation Notes

Installation should be performed by a qualified mechanic or assembler using a properly sized hex wrench or socket. Always verify thread engagement depth and ensure the mating hole or nut matches the 3/8-16 thread specification before torquing. Do not mix inch-series and metric fasteners in the same assembly. Follow applicable torque specifications from the equipment manufacturer or relevant standards for Grade 9 fasteners.