Value Collection 581077PR Hex Socket Cap Screw 3-48 Unc

Product Description

The VALUE COLLECTION 581077PR is a hex socket cap screw designed for precision fastening applications requiring a compact, high-strength connection. Threaded 3-48 UNC and fully threaded along its 1/8-inch length under head, this screw accepts a 5/64-inch hex drive and is manufactured from alloy steel with a black oxide coating for added corrosion resistance. It conforms to ASME/ANSI B18.3 and ASTM A574 standards, making it suitable for controlled mechanical assemblies where thread integrity and material strength are critical. Licensed tradespeople and mechanical assemblers working on fine-threaded applications will find this fastener meets industry dimensional and material requirements.

This socket cap screw is well suited for use in tight-clearance assemblies where a low-profile, internally driven fastener is required. Common applications include light machinery, instrument housings, brackets, and other components where a standard hex socket drive tool is used. The 3-48 UNC thread form is typically found in small-diameter precision assemblies across industrial, electrical, and mechanical trades. Minimum order quantity is 100 units per order.

Key Features

• 3-48 UNC thread size for precision small-diameter fastening
• Fully threaded along the 1/8-inch length under head
• 5/64-inch hex socket drive for use with standard hex keys
• Alloy steel construction meets ASTM A574 strength requirements
• Black oxide finish provides mild corrosion resistance
• Conforms to ASME/ANSI B18.3 dimensional standards

Compatibility

Designed as a standard-dimension replacement or production fastener for assemblies requiring a 3-48 UNC fully threaded hex socket cap screw per ASME/ANSI B18.3.

Installation Notes

Installation should be performed by a qualified mechanic or assembler using a properly sized 5/64-inch hex key or driver to avoid rounding the drive socket. Verify thread engagement and clearance in the mating component before applying torque. Do not mix with metric-threaded hardware, as the 3-48 UNC thread form is not interchangeable with metric equivalents. Follow applicable assembly standards and any relevant torque specifications provided by the equipment manufacturer.