Value Collection 011381PR Hex Socket Cap Screw 1/2-13 Unc

Product Description

The VALUE COLLECTION 011381PR is a hex socket cap screw designed for high-strength bolted assemblies requiring a recessed-drive fastener. It features a 1/2-13 UNC thread and measures 5 inches in length under the head, with partial threading along the shank. The 3/8-inch hex drive accepts a standard hex key or Allen-style driver. Constructed from alloy steel and finished with a black oxide coating, this fastener provides moderate corrosion resistance and reduces light reflection in finished assemblies. It conforms to ASME/ANSI B18.3 and ASTM A574 standards, making it suitable for applications where dimensional and tensile strength compliance is required.

This screw is commonly used in mechanical assemblies, industrial equipment, tooling fixtures, and structural connections where a flush or low-profile fastener head is needed. The partially threaded shank provides a shoulder bearing surface useful in shear-loaded joints. Typical installation environments include machine shops, fabrication facilities, and maintenance operations across manufacturing and industrial sectors.

Key Features

• 1/2-13 UNC thread form for compatibility with standard inch-series tapped holes
• 5 inches length under head with partial threading for shear-load applications
• 3/8-inch hex socket drive accepts standard hex keys and Allen drivers
• Alloy steel construction meets ASTM A574 tensile strength requirements
• Black oxide finish provides mild corrosion resistance and low-reflectance appearance
• Conforms to ASME/ANSI B18.3 dimensional standards

Compatibility

Designed as a standard inch-series hex socket cap screw for use in any 1/2-13 UNC tapped hole requiring an ASME/ANSI B18.3 compliant fastener.

Installation Notes

Installation is typically performed by machinists, millwrights, or maintenance technicians using a 3/8-inch hex key or T-handle driver. Ensure the mating tapped hole is clean and free of debris before installation. Apply thread lubricant or thread-locking compound as required by the assembly specification. Torque to the value specified by the equipment manufacturer or applicable engineering standard for 1/2-13 alloy steel fasteners.