Value Collection 581442PR Hex Socket Cap Screw 5/16-18

Product Description

The VALUE COLLECTION 581442PR is a hex socket cap screw designed for high-strength fastening applications in mechanical assemblies, structural connections, and industrial equipment. Manufactured from alloy steel with a black oxide finish, this screw provides corrosion resistance and a clean appearance in service environments. The 5/16-18 UNC thread pitch and 10-inch length under head make it suitable for deep-reach fastening tasks where standard-length fasteners fall short. Drive engagement is achieved through a 1/4-inch hex socket, requiring a hex key or socket driver for installation. Licensed trades, machine shops, and maintenance professionals rely on this fastener for dependable clamping force in demanding applications.

This screw is appropriate for use in industrial machinery, structural steel fabrication, equipment mounting, and mechanical maintenance across both commercial and light industrial settings. The partially threaded shank provides a smooth bearing surface through the grip region, allowing precise clamping without thread engagement where it is not needed. It meets ASME/ANSI B18.3 and ASTM A574 dimensional and mechanical standards, making it suitable for specification-driven projects requiring documented fastener compliance.

Key Features

• 5/16-18 UNC thread size for standard inch-series compatibility
• 10-inch length under head for deep-reach fastening applications
• 1/4-inch hex socket drive for positive torque transfer with hex key or socket driver
• Alloy steel construction for high tensile strength under load
• Black oxide coating provides moderate corrosion resistance and reduces light reflection
• Partially threaded shank maintains a smooth grip zone for accurate clamping
• Meets ASME/ANSI B18.3 and ASTM A574 standards

Compatibility

Designed as an OEM-style replacement or new-installation fastener for applications requiring a 5/16-18 UNC hex socket cap screw with a 10-inch length under head, conforming to ASME/ANSI B18.3 and ASTM A574 specifications.

Installation Notes

Installation and removal should be performed with the correct 1/4-inch hex key or socket driver to avoid rounding the drive recess. De-energize or lock out any equipment before accessing fastener locations on live machinery, following applicable OSHA lockout/tagout procedures. Do not exceed the rated tensile strength of the alloy steel fastener by substituting it in applications requiring higher-grade hardware without verifying load requirements. Fastener threads and mating surfaces should be inspected for damage before assembly.