Value Collection 011189P Hex Socket Cap Screw 1/4-28 Unf

Product Description

The VALUE COLLECTION 011189P is a hex socket cap screw designed for high-strength fastening applications in mechanical assemblies, fixtures, and equipment. It features a 1/4-28 UNF thread size with a 2-inch length under head and is partially threaded to maintain clamping force in standard bolt configurations. The 3/16-inch hex drive accepts a standard Allen-style hex key. Constructed from alloy steel with a black oxide finish, this fastener resists corrosion in low-moisture environments and meets ASME/ANSI B18.3 and ASTM A574 standards. Machinists, millwrights, and mechanical contractors use this fastener where precise threading and reliable torque retention are required.

This screw is suited for general industrial and mechanical maintenance applications requiring a fine-thread, high-strength cap screw. The 1/4-28 UNF thread pitch provides finer thread engagement compared to coarse-thread equivalents, making it well-suited for thin-walled components, precision assemblies, and applications where vibration resistance is a priority. The black oxide alloy steel construction supports use in light-duty corrosion environments typical of indoor mechanical and electrical enclosures.

Key Features

• 1/4-28 UNF fine thread for precise engagement and vibration resistance
• 2-inch length under head, partially threaded for standard clamping applications
• 3/16-inch hex drive compatible with standard Allen keys and hex drivers
• Alloy steel construction meets ASTM A574 high-strength fastener requirements
• Black oxide finish provides mild corrosion resistance and reduces light reflection
• Conforms to ASME/ANSI B18.3 socket cap screw standards

Compatibility

Designed as a standard ASME/ANSI B18.3 hex socket cap screw for use in any application requiring a 1/4-28 UNF partially threaded cap screw with a 3/16-inch hex drive.

Installation Notes

Install using a calibrated 3/16-inch hex key or hex driver bit. Ensure mating threads are clean and free of debris before installation. De-energize and lock out any equipment before fastener replacement or adjustment per applicable safety procedures. Do not exceed the torque rating specified in your assembly documentation for 1/4-28 ASTM A574 fasteners.