Value Collection 457456BR Hex Head Cap Screw 5/8-18 X 7 in

Product Description

The VALUE COLLECTION 457456BR is a partially threaded hex head cap screw designed for high-load fastening applications in mechanical, structural, and industrial assembly work. It features a 5/8-18 UNF thread and a 7-inch length under head, machined from Grade 5 steel and finished with a zinc plating for corrosion resistance. The hex drive accepts a 15/16-inch hex key or wrench. This fastener conforms to ASME B18.2.1 and SAE J429 standards, making it a recognized choice for applications where dimensional and strength compliance are required. Machinists, millwrights, and maintenance technicians are the typical installers.

This cap screw is suited for general industrial and mechanical assembly where a fine-thread UNF fastener is specified. The partially threaded shank provides a smooth bearing surface through a portion of the grip length, which is useful in applications requiring precise bolt alignment or where the fastener passes through clearance holes before engaging a tapped bore. It is appropriate for use in equipment maintenance, fabrication, and structural fastening in both shop and field environments.

Key Features

• 5/8-18 UNF thread for fine-pitch engagement and vibration resistance
• 7-inch length under head accommodates deep grip applications
• Grade 5 steel construction meets SAE J429 minimum tensile strength requirements
• Zinc plating provides basic corrosion and oxidation resistance
• Partially threaded shank offers a smooth bearing surface along the grip
• Conforms to ASME B18.2.1 dimensional standards

Compatibility

Designed as a standard inch-series hex head cap screw for any application specifying a 5/8-18 UNF partially threaded fastener per ASME B18.2.1 and SAE J429.

Installation Notes

Installation is performed with a 15/16-inch open-end, box-end, or socket wrench. Ensure the mating tapped hole or nut is clean and free of debris before threading. Apply thread lubricant or anti-seize compound as required by the assembly specification to achieve accurate clamp load. Do not exceed the proof load for Grade 5 fasteners; consult engineering documentation for application-specific torque values.