Value Collection -33616-1 Hex Socket Cap Screw 5/16-18 Unc

Product Description

The VALUE COLLECTION -33616-1 is a fully threaded hex socket cap screw designed for fastening applications that require a clean, recessed drive profile and high tensile strength. Built from alloy steel with a black oxide finish, this screw carries a 5/16-18 UNC thread and measures 5/8 inch under the head. The 1/4 inch hex drive is engaged with a standard hex key or Allen wrench. It meets ASME/ANSI B18.3 and ASTM A574 fastener standards. Machinists, millwrights, and maintenance technicians commonly install these in equipment assemblies, fixture builds, and mechanical sub-assemblies where a flush or recessed fastener head is required.

This screw is suited for general industrial, mechanical, and maintenance applications where a compact, high-strength fastener is needed in confined spaces. The 5/16-18 UNC coarse thread provides reliable engagement in tapped steel, aluminum, and cast iron. The black oxide coating offers mild corrosion resistance and reduces light reflection in precision assemblies. Sold individually with a minimum order quantity of 50 units per order.

Key Features

• 5/16-18 UNC coarse thread for broad compatibility with standard tapped holes
• 5/8 inch length under head suits shallow-depth fastening applications
• Fully threaded shank maximizes thread engagement across the full length
• 1/4 inch hex socket drive accepts standard Allen keys and hex bit drivers
• Alloy steel construction meets ASTM A574 high-strength requirements
• Black oxide finish provides mild corrosion resistance and low-glare appearance

Compatibility

Designed as a standard ASME/ANSI B18.3 hex socket cap screw compatible with any 5/16-18 UNC tapped hole in steel, aluminum, or cast iron assemblies.

Installation Notes

Installation is typically performed by machinists, millwrights, or maintenance technicians using a 1/4 inch hex key or Allen bit driver. Ensure the mating tapped hole is clean and free of debris before installation. Apply thread-locking compound or appropriate torque per the equipment manufacturer's specifications for the assembly being serviced. Do not use an impact driver without a rated hex socket bit to avoid rounding the drive recess.