Value Collection 011197P Hex Socket Cap Screw 5/16-18 Unc

Product Description

The VALUE COLLECTION 011197P is a hex socket cap screw designed for precision fastening in mechanical, industrial, and structural assemblies. Sized at 5/16-18 UNC with a 5/8-inch length under head, it is fully threaded and driven with a 1/4-inch hex key. Manufactured from alloy steel with a black oxide finish, this fastener delivers high tensile strength and moderate corrosion resistance. It meets ASME/ANSI B18.3 and ASTM A574 standards, making it a recognized choice for applications where dimensional and strength tolerances are specified by engineering drawings or maintenance procedures.

This screw is suited for general mechanical assembly, equipment maintenance, and fabrication work across a wide range of industries including HVAC equipment frames, pump housings, electrical enclosures, and structural brackets. The black oxide coating reduces surface friction during installation and provides mild rust resistance in indoor or protected environments. It is appropriate for use by machinists, millwrights, maintenance technicians, and trade professionals who require a standardized alloy steel cap screw with a hex socket drive.

Key Features

• 5/16-18 UNC thread size for compatibility with standard inch-series tapped holes
• 5/8-inch length under head, fully threaded from tip to head
• 1/4-inch hex socket drive for use with standard Allen keys or hex bit drivers
• Alloy steel construction meets ASTM A574 high-strength cap screw specification
• Black oxide finish reduces galling and provides mild corrosion resistance in dry environments
• Conforms to ASME/ANSI B18.3 dimensional standards

Compatibility

Designed as a standard inch-series hex socket cap screw for use in any application requiring a 5/16-18 UNC threaded fastener with a 5/8-inch grip length and 1/4-inch hex drive.

Installation Notes

Installation is performed using a 1/4-inch hex key or Allen driver; ensure the driver is fully seated in the socket before applying torque to avoid rounding. Always verify that the mating tapped hole is clean, undamaged, and correctly sized for 5/16-18 UNC thread engagement before installation. De-energize and lock out any equipment before fastener removal or replacement on live assemblies. Follow applicable engineering specifications or equipment service manuals for torque requirements.