Value Collection 581094PR Hex Socket Cap Screw 3-56 Unf

Product Description

The VALUE COLLECTION 581094PR is a hex socket cap screw designed for precision fastening in tight-clearance applications. Manufactured from alloy steel with a black oxide coating, this fastener delivers solid mechanical strength and moderate corrosion resistance in a compact form factor. The 3-56 UNF thread specification makes it suitable for fine-pitch fastening tasks where thread engagement and holding force matter. At 3/16 inches length under head and a 5/64 inch hex drive, this screw is built for small-scale assemblies where space is limited and torque control is critical. Installation requires a matching 5/64 inch hex key or Allen driver. Electricians, HVAC technicians, and mechanical assemblers commonly use fasteners in this size range when securing panels, brackets, and electronic enclosures.

This screw is suited for use in light industrial, electronic, and mechanical assembly applications where a fine unified thread is required. The 3-56 UNF designation indicates 56 threads per inch on a No. 3 diameter shank, providing fine thread engagement in metal tapped holes. The black oxide finish reduces surface reflectivity and offers mild protection against oxidation in dry or low-humidity environments. This fastener is sold in minimum order quantities of 100 pieces, making it appropriate for production assembly, maintenance kits, or stocking purposes.

Key Features

• 3-56 UNF thread form for fine-pitch, high-engagement fastening
• 5/64 inch hex socket drive for use with standard Allen keys
• 3/16 inch length under head for compact, low-profile assemblies
• Alloy steel construction for high tensile strength in small diameters
• Black oxide coating for mild corrosion resistance and low reflectivity
• Fully threaded shank maximizes thread engagement in shallow holes

Compatibility

Designed as an OEM-style replacement or production fastener for any application requiring a No. 3-56 UNF hex socket cap screw per ASME/ANSI B18.3 and ASTM A574 standards.

Installation Notes

Installation should be performed by a qualified assembler or technician using a calibrated 5/64 inch hex key or torque driver appropriate for the application. Confirm the mating tapped hole is clean, free of debris, and threaded to the correct 3-56 UNF specification before driving the fastener. Do not exceed the rated torque capacity for the fastener diameter and material grade to avoid thread stripping or screw breakage. Follow applicable mechanical assembly standards for the end-use application.