Value Collection MP39335 Hex Head Cap Screw 5/16-24

Product Description

The VALUE COLLECTION MP39335 is a partially threaded hex head cap screw designed for high-strength fastening applications. Manufactured from Grade 8 steel with a zinc yellow dichromate finish, this fastener delivers superior tensile strength and corrosion resistance compared to lower-grade alternatives. The 5/16-24 thread size follows the Unified National Fine (UNF) standard, offering finer thread engagement and stronger clamp load in metal-to-metal assemblies. At 2.5 inches in length under the head, it suits applications requiring a longer grip in structural or mechanical connections. Meets ASME B18.2.1 dimensional standards. Sold in packages of 25.

This screw is suited for industrial, mechanical, and structural assembly work where high-strength fasteners are required. Typical applications include heavy equipment, automotive components, tooling fixtures, and machinery assemblies. The partially threaded shank provides a smooth bearing surface through the clamped material before thread engagement begins, which is preferred in precision joint applications. Maintenance technicians, millwrights, and mechanical contractors commonly specify Grade 8 hardware for critical fastening points that see high shear or tensile loads.

Key Features

• Grade 8 steel construction provides high tensile and proof-load strength
• Zinc yellow dichromate finish offers corrosion resistance in moderate environments
• 5/16-24 UNF thread delivers fine-pitch engagement for secure clamping
• Partially threaded shank maintains smooth bearing surface through clamped material
• Meets ASME B18.2.1 dimensional standards for consistent fitment
• Packaged in quantities of 25 per unit

Compatibility

Designed as a standard UNF Grade 8 hex head cap screw for use in any application requiring a 5/16-24 threaded fastener conforming to ASME B18.2.1 specifications.

Installation Notes

Installation should be performed by a qualified technician familiar with fastener torque requirements for Grade 8 hardware. Always verify thread engagement depth and hole condition before installation. Do not mix Grade 8 fasteners with lower-grade nuts or threaded inserts, as the assembly strength will be limited by the weaker component. Use appropriate wrenching tools sized for the hex head to avoid rounding or damage to the finish.