Value Collection -33622-1 Hex Socket Cap Screw 5/16-18

Product Description

The VALUE COLLECTION -33622-1 is a hex socket cap screw designed for secure mechanical fastening in structural and industrial applications. It features a 5/16-18 UNC thread and measures 1-3/4 inches in length under the head. The screw is fully threaded along its entire shank and is driven with a 1/4-inch hex socket or Allen key. Constructed from alloy steel with a black oxide finish, it provides improved corrosion resistance and reduced surface reflectivity compared to plain steel fasteners. This screw meets ASME/ANSI B18.3 and ASTM A574 standards, making it suitable for high-strength fastening tasks across manufacturing, maintenance, and mechanical assembly work.

This screw is used in a wide range of industrial and mechanical assembly scenarios where a flush or recessed fastener head is required. Common applications include machinery assembly, equipment mounting, jig and fixture fabrication, and general MRO (maintenance, repair, and operations) tasks. The 5/16-18 UNC thread is a standard coarse-thread designation, compatible with matching UNC tapped holes or hex nuts of the same size. The black oxide coating suits indoor and light-duty outdoor applications where moderate corrosion protection is acceptable.

Key Features

• 5/16-18 UNC coarse thread for broad compatibility with standard tapped holes and hardware
• Fully threaded shank for maximum thread engagement along the entire 1-3/4-inch length
• 1/4-inch hex drive accepts standard Allen keys and hex socket bits
• Alloy steel construction meets ASTM A574 high-strength fastener requirements
• Black oxide finish provides mild corrosion resistance and low-glare appearance
• Conforms to ASME/ANSI B18.3 dimensional standards

Compatibility

Designed as a standard replacement or stock fastener for any application requiring a 5/16-18 UNC fully threaded hex socket cap screw per ASME/ANSI B18.3 and ASTM A574 specifications.

Installation Notes

Installation is typically performed by maintenance technicians or mechanical assemblers using a 1/4-inch hex key or socket bit. Ensure the mating tapped hole or nut is clean and free of debris before driving the screw. Do not overtighten, as alloy steel fasteners at this size can be susceptible to thread stripping in softer base materials. Consult applicable equipment manufacturer specifications or relevant ASME standards for proper torque guidance.