Value Collection 307115PR Hex Socket Cap Screw 5/16-18 Unc

Product Description

The VALUE COLLECTION 307115PR is a hex socket cap screw designed for secure, high-strength fastening in mechanical assemblies and structural applications. It features a 5/16-18 UNC thread form and measures 1-3/4 inches in length under the head with partial threading. The drive is a 7/32-inch internal hex socket, requiring an Allen or hex key for installation. Constructed from alloy steel with a black oxide coating, it meets ASTM A574 specifications for mechanical properties. This fastener is commonly installed by millwrights, maintenance technicians, and industrial assemblers where a flush or low-profile fastener head is required.

This cap screw is suited for use in machinery, fixtures, tooling, and general industrial assemblies where a 5/16-18 UNC thread is specified. The partial threading allows for clamping force across the unthreaded shank, making it appropriate for bolted joint applications requiring precise load distribution. The black oxide finish provides mild corrosion resistance in indoor and controlled environments. This item is sold individually but requires a minimum order quantity of 100 pieces per order.

Key Features

• 5/16-18 UNC thread form for standard inch-series fastener compatibility
• 1-3/4 inches length under head with partial threading for clamping-style joint applications
• 7/32-inch hex socket drive for Allen key or hex bit installation
• Alloy steel construction meets ASTM A574 mechanical requirements
• Black oxide coating provides mild corrosion resistance and reduces light reflection

Compatibility

Designed as a standard 5/16-18 UNC hex socket cap screw for use in any application requiring ASTM A574-compliant alloy steel fasteners with a 7/32-inch hex drive and 1-3/4-inch length under head.

Installation Notes

Installation is performed using a 7/32-inch hex key or hex bit driver. Always verify that the mating threaded hole or nut meets the same thread standard before assembly. Torque to the value specified in the applicable engineering drawing or fastener specification for 5/16-18 UNC alloy steel cap screws. Inspect threads for damage before installation and do not force a misaligned fastener.