Value Collection 581528PR Hex Socket Cap Screw 7/16-20 Unf

Product Description

The VALUE COLLECTION 581528PR is a hex socket cap screw designed for high-strength fastening applications in mechanical assemblies, tooling fixtures, and industrial equipment. It features a 7/16-20 UNF thread size with a 3-inch length under head and is partially threaded to allow for precise clamping loads. The screw is machined from alloy steel and finished with a black oxide coating that provides mild corrosion resistance and a clean appearance. A 3/8-inch hex drive accepts standard Allen wrenches and hex socket tooling. This fastener meets ASME/ANSI B18.3 and ASTM A574 standards, making it a reliable choice for precision and load-bearing applications.

This cap screw is suited for use in manufacturing, maintenance, and repair environments where socket-drive fasteners are preferred for flush or recessed installations. Common applications include machine tool assembly, jig and fixture building, hydraulic component mounting, and general industrial equipment fabrication. The 7/16-20 UNF fine thread pitch provides higher tensile strength and better resistance to loosening under vibration compared to coarse-thread equivalents, making it appropriate for dynamic load conditions.

Key Features

• 7/16-20 UNF fine thread for high tensile strength and vibration resistance
• 3 inches length under head, partially threaded for precise clamping
• Alloy steel construction meets ASTM A574 high-strength fastener standard
• Black oxide finish provides mild corrosion and abrasion resistance
• 3/8-inch hex socket drive compatible with standard Allen keys and socket tools
• Conforms to ASME/ANSI B18.3 dimensional standard

Compatibility

Designed as a standard hex socket cap screw per ASME/ANSI B18.3 for use in any application requiring a 7/16-20 UNF partially threaded socket cap screw with a 3/8-inch drive.

Installation Notes

Installation is performed using a 3/8-inch hex key or socket driver. Always ensure mating threads are clean and free of debris before installation. Follow applicable torque specifications from the equipment manufacturer or relevant industry standards for alloy steel socket cap screws. Do not substitute for applications requiring a different thread form or fastener grade without verifying load requirements.