Value Collection DC89629 Hex Head Cap Screw 9/16-12 X 4-1/2 in

Product Description

The Value Collection DC89629 is a partially threaded hex head cap screw designed for high-strength fastening applications in industrial and mechanical assemblies. Manufactured from Grade 8 steel with a zinc yellow dichromate finish, this fastener delivers elevated tensile strength and corrosion resistance compared to lower-grade alternatives. The 9/16-12 UNC thread and 4-1/2-inch length under head make it well suited for heavy-duty bolted connections where clamp load and durability are critical. It conforms to ASME B18.2.1 and SAE J429 standards, ensuring dimensional accuracy and mechanical property compliance for professional use.

This cap screw is used across a wide range of industrial, mechanical, and trade applications including structural assemblies, machinery mounting, HVAC equipment frames, electrical panel supports, and general fabrication work. The partial threading provides a smooth shank section that improves shear strength and helps align mating components before full engagement. It is appropriate wherever an inch-series, high-strength hex fastener is specified in shop drawings, maintenance work orders, or OEM equipment service procedures.

Key Features

• Grade 8 steel construction for high tensile and proof load strength
• Zinc yellow dichromate finish provides corrosion and oxidation resistance
• Partially threaded shank improves shear resistance and component alignment
• 9/16-12 UNC thread form for compatibility with standard inch-series nuts and tapped holes
• Meets ASME B18.2.1 and SAE J429 dimensional and mechanical standards

Compatibility

Designed for use with standard 9/16-12 UNC inch-series hex nuts, washers, and tapped holes conforming to ASME B18.2.2 or equivalent inch-standard specifications.

Installation Notes

Installation is typically performed by millwrights, pipefitters, electricians, or general maintenance technicians using standard hex wrenches or impact tooling sized for a 9/16-inch bolt. Always verify that the mating nut or tapped hole is rated for Grade 8 loading before installation. Follow applicable torque specifications from engineering drawings or ASME standards for the joint design. Inspect threads and seating surfaces for damage before assembly.