Value Collection 307154BR Hex Socket Cap Screw 5/8-11 Unc

Product Description

The VALUE COLLECTION 307154BR is a partially threaded hex socket cap screw designed for heavy-duty fastening applications in industrial, mechanical, and structural assemblies. Sized at 5/8-11 UNC with a 7-inch length under head, this fastener is driven by a 1/2-inch hex (Allen) key. It is manufactured from alloy steel and finished with a black oxide coating that provides moderate corrosion resistance and reduces light reflection. Meeting ASTM A574 standards, it is suited for high-strength bolted connections where a recessed drive and flush or near-flush head profile are required. Maintenance technicians, millwrights, and mechanical contractors are the typical installers.

This cap screw fits a wide range of general industrial and mechanical applications including machinery assembly, equipment mounting, jig and fixture construction, and structural fastening where a hex socket drive is preferred over an external hex head. The partial threading allows for precise clamping and alignment in through-bolt configurations. Its alloy steel construction and ASTM A574 compliance make it appropriate for load-bearing joints in manufacturing, maintenance, and repair environments.

Key Features

• 5/8-11 UNC thread size for compatibility with standard unified coarse thread nuts and tapped holes
• 7-inch length under head accommodates thick material stacks and deep through-bolt applications
• Partial threading allows proper clamping force without thread engagement through the full grip length
• 1/2-inch hex socket drive for use with standard Allen keys and hex bit drivers
• Alloy steel construction meets ASTM A574 high-strength fastener requirements
• Black oxide finish provides mild corrosion resistance and a low-reflectance appearance

Compatibility

Designed as an OEM-style replacement or standard fastener for applications requiring a 5/8-11 UNC partially threaded hex socket cap screw conforming to ASTM A574.

Installation Notes

Installation is typically performed by millwrights, maintenance technicians, or mechanical contractors using a 1/2-inch hex key or socket bit. Always ensure the tapped hole or mating nut matches the 5/8-11 UNC thread specification before installation. De-energize and lock out all equipment per applicable OSHA lockout/tagout procedures before fastener installation or removal. Do not substitute a smaller drive tool, as this can round the socket and damage the fastener head.