Value Collection 011401PR Hex Socket Cap Screw 1/2-20 Unf

Product Description

The VALUE COLLECTION 011401PR is a fully threaded hex socket cap screw designed for high-strength fastening in mechanical, industrial, and structural assemblies. It features a 1/2-20 UNF thread and a 2-inch length under head, with a 3/8-inch hex drive for use with standard Allen keys or hex bit drivers. Constructed from alloy steel and finished with a black oxide coating, this fastener provides corrosion resistance and a consistent surface for close-tolerance applications. It meets ASME/ANSI B18.3 and ASTM A574 standards, making it suitable for demanding load-bearing and precision fastening work across a range of trades.

This screw is used in mechanical assemblies, equipment fabrication, and maintenance applications where a recessed drive and high clamping strength are required. The 1/2-20 UNF fine thread pitch provides increased tensile strength and resistance to loosening compared to coarse thread equivalents, making it a preferred choice in vibration-prone environments such as machinery, pumps, HVAC equipment mounting, and structural brackets. Installed by machinists, maintenance technicians, and trade professionals using standard hex drivers or Allen wrenches.

Key Features

• Fully threaded 1/2-20 UNF fine thread for maximum thread engagement
• 2-inch length under head for deeper fastening depth in thick stock
• 3/8-inch hex socket drive compatible with standard Allen keys and hex bit sets
• Alloy steel construction rated to ASTM A574 for high tensile strength
• Black oxide finish provides mild corrosion resistance and reduces light reflection
• Conforms to ASME/ANSI B18.3 dimensional standards

Compatibility

Designed as a standard ASME/ANSI B18.3 hex socket cap screw suitable for use in any application requiring a 1/2-20 UNF fully threaded fastener with a 3/8-inch internal hex drive.

Installation Notes

Install using a 3/8-inch hex key or socket bit driver. Always ensure mating threads are clean and free of debris before installation. De-energize and lock out any equipment before replacing fasteners on live machinery. Follow applicable torque specifications from equipment manufacturer documentation for 1/2-20 ASTM A574 fasteners.