Value Collection 33610 Hex Socket Cap Screw 1/4-20 Unc

Product Description

The VALUE COLLECTION 33610 is a partially threaded hex socket cap screw designed for fastening applications that require a recessed-drive, high-strength connection. Manufactured from alloy steel with a black oxide finish, this fastener meets ASME/ANSI B18.3 and ASTM A574 standards. It features a 1/4-20 UNC thread size, a 2-1/2 inch length under head, and a 3/16 inch hex drive. The black oxide coating provides mild corrosion resistance and reduces light reflection in finished assemblies. Electricians, HVAC technicians, millwrights, and general tradespeople use socket cap screws like this when a low-profile, torque-resistant fastener is needed in tight clearance areas.

This screw is suited for use in mechanical assemblies, equipment panels, brackets, and fixtures across residential, commercial, and light industrial applications. The 1/4-20 UNC coarse thread provides reliable engagement in steel and aluminum tapped holes. The partial threading allows the shank to act as a shoulder in clearance-fit applications, helping to locate and align mated components. This fastener is commonly installed by maintenance technicians, fabricators, and field service personnel working with standard inch-pattern hardware.

Key Features

• 1/4-20 UNC coarse thread for broad tap-hole compatibility
• 2-1/2 inch length under head with partial threading for shoulder-fit applications
• 3/16 inch hex socket drive for use with standard Allen keys or hex bit drivers
• Alloy steel construction meets ASTM A574 high-strength requirements
• Black oxide finish provides mild corrosion resistance and matte appearance
• Conforms to ASME/ANSI B18.3 dimensional standard

Compatibility

Designed as a standard inch-series socket cap screw for use in any tapped hole or nut conforming to 1/4-20 UNC thread specifications per ASME/ANSI B18.3.

Installation Notes

Installation requires a 3/16 inch hex key or hex bit driver. Ensure the mating tapped hole is clean and free of debris before driving the fastener. Do not exceed the rated torque range for 1/4-20 alloy steel fasteners as specified by ASME standards. Power down or de-energize any equipment before accessing fastener locations on electrical or mechanical assemblies.