Value Collection 40224 Hex Socket Cap Screw 1/4-28 Unf

Product Description

The VALUE COLLECTION 40224 is a hex socket cap screw designed for high-strength fastening applications in mechanical assemblies, maintenance work, and industrial installations. The screw features a 1/4-28 UNF thread size and measures 2-1/4 inches in length under the head. It is partially threaded and driven with a 3/16-inch hex key. Constructed from alloy steel with a black oxide coating, this fastener delivers solid corrosion resistance and surface hardness suited to demanding service environments. Trade professionals, machine technicians, and maintenance crews will find this part a reliable standard-duty fastener for general and precision applications.

This hex socket cap screw is suited for use in tight-clearance assemblies where a low-profile socket drive is required. The 1/4-28 UNF fine thread pitch provides strong clamping force and resistance to loosening under vibration, making it appropriate for mechanical enclosures, equipment frames, and precision fixtures. The black oxide finish reduces light reflection and offers mild corrosion protection in indoor or sheltered environments. These screws are sold individually but must be ordered in multiples of 50.

Key Features

• 1/4-28 UNF fine thread for high clamping strength and vibration resistance
• 2-1/4 inches length under head with partial threading for positive engagement
• 3/16-inch hex drive socket for use in confined spaces
• Alloy steel construction meets ASME/ANSI B18.3 and ASTM A574 standards
• Black oxide coating provides mild corrosion protection and low-reflectance finish

Compatibility

Designed as a standard 1/4-28 UNF hex socket cap screw conforming to ASME/ANSI B18.3 and ASTM A574, suitable as a direct replacement in assemblies requiring this thread size and drive type.

Installation Notes

Install using a 3/16-inch hex key or Allen wrench of appropriate length for the application. Ensure the mating threaded hole is clean and free of debris before driving. Do not exceed the rated torque for the 1/4-28 UNF thread class to avoid stripping or fastener failure. Minimum order quantity of 50 units applies for procurement.