Value Collection 011391PR Hex Socket Cap Screw 1/2-13 Unc

Product Description

The VALUE COLLECTION 011391PR is a partially threaded hex socket cap screw designed for high-strength fastening applications. It features a 1/2-13 UNC thread size and measures 8 inches in length under the head. Driven with a 3/8-inch hex key, this cap screw is manufactured from alloy steel and finished with a black oxide coating that provides mild corrosion resistance and reduces surface reflectivity. It conforms to ASME/ANSI B18.3 and ASTM A574 standards, making it suitable for demanding mechanical and structural assemblies where a flush, recessed-head fastener is required.

This cap screw is used in a wide range of industrial, mechanical, and manufacturing applications where high clamp load and a clean fastener profile are needed. The partially threaded shank provides a grip area that resists shear forces, making it well suited for jigs, fixtures, machine frames, and equipment assemblies. Tradespeople and maintenance technicians working in fabrication, industrial maintenance, and general mechanical assembly will commonly specify this type of fastener.

Key Features

• 1/2-13 UNC thread for strong, standardized engagement
• 8-inch length under head with partial threading for shear-resistant grip
• 3/8-inch hex drive for precise torque application with standard hex keys or Allen drivers
• Alloy steel construction for high tensile and yield strength
• Black oxide finish for mild corrosion resistance and low-glare surface
• Meets ASME/ANSI B18.3 and ASTM A574 standards

Compatibility

Designed as an OEM-style replacement or general-use hex socket cap screw suitable for standard 1/2-13 UNC tapped holes in industrial and mechanical assemblies.

Installation Notes

Installation is typically performed by mechanical technicians or maintenance personnel using a 3/8-inch hex key or Allen socket with a torque wrench. Ensure mating tapped holes are clean and free of debris before installation. Apply thread lubricant or thread-locking compound as required by the assembly specification. Do not exceed the rated torque for the fastener grade as defined in ASTM A574 guidance.