Value Collection 581045P Hex Socket Cap Screw 2-56 Unc

Product Description

The VALUE COLLECTION 581045P is a hex socket cap screw designed for precision fastening applications requiring a compact, high-strength fastener. Threaded to 2-56 UNC specification, this screw measures 5/8 inches under the head and is fully threaded along its length. The 5/64-inch hex drive socket accepts a standard hex key or Allen wrench. Constructed from alloy steel with a black oxide finish coating, it delivers corrosion resistance suitable for indoor mechanical and electrical assemblies. Machinists, maintenance technicians, and assembly professionals install this fastener in equipment where small-diameter, high-strength socket cap screws are required.

This screw is well-suited for use in tight clearance assemblies, instrument panels, small mechanical devices, and precision equipment enclosures. The 2-56 UNC thread form is common in light-gauge metalwork, electronics chassis, and instrumentation hardware. The fully threaded shank maximizes thread engagement across the full 5/8-inch length, making it appropriate for thin boss or through-hole applications. This fastener conforms to ASME/ANSI B18.3 and ASTM A574 standards, which are widely referenced in industrial and OEM manufacturing specifications.

Key Features

• 2-56 UNC thread size for use in precision and instrumentation applications
• 5/8-inch length under head with full threading along the entire shank
• 5/64-inch hex socket drive accepts standard hex keys
• Alloy steel construction meets ASTM A574 strength requirements
• Black oxide finish coating provides moderate corrosion resistance for indoor use
• Conforms to ASME/ANSI B18.3 dimensional standards

Compatibility

Designed as a standard replacement or service fastener for assemblies requiring 2-56 UNC hex socket cap screws per ASME/ANSI B18.3 dimensional specifications.

Installation Notes

Install using a correctly sized 5/64-inch hex key to avoid rounding the drive socket. Ensure mating threads are clean and free of debris before installation. Do not exceed the torque rating appropriate for 2-56 alloy steel fasteners as specified by the equipment manufacturer or applicable assembly standards. Handle black oxide-coated fasteners with care to preserve the finish coating.