Value Collection 307311PR Hex Socket Cap Screw 5/16-24 Unf

Product Description

The VALUE COLLECTION 307311PR is a hex socket cap screw designed for high-strength fastening applications in mechanical assemblies, tooling, and structural connections. This screw features a 5/16-24 UNF thread and a 1-1/4 inch length under head, with a 7/32 inch hex drive socket. It is manufactured from alloy steel and finished with a black oxide coating, which provides mild corrosion resistance and reduces light reflection. Fully threaded along the shank, this fastener meets the ASTM A574 standard for alloy steel socket cap screws. Machinists, millwrights, and maintenance technicians install these in metal-to-metal joints where a flush or low-profile head is required.

This socket cap screw is suited for use in production machinery, fixtures, jigs, and equipment frames where fine-thread engagement and controlled clamping force are needed. The 5/16-24 UNF thread pitch provides tighter thread engagement compared to coarse thread equivalents, making it a common choice in applications subject to vibration or where precise torque control is critical. This fastener is sold individually per package with a minimum order quantity of 100 pieces.

Key Features

• 5/16-24 UNF fine thread for higher tensile strength and vibration resistance
• 1-1/4 inch length under head, fully threaded along entire shank
• 7/32 inch hex socket drive for standard Allen or hex key installation
• Alloy steel construction meets ASTM A574 socket cap screw standard
• Black oxide finish provides mild corrosion resistance and low-glare surface

Compatibility

Designed as a standard ASTM A574 alloy steel hex socket cap screw for use in tapped holes requiring a 5/16-24 UNF thread form in metal assemblies, fixtures, and machinery components.

Installation Notes

Installation is performed using a 7/32 inch hex key or Allen driver. Verify that the mating tapped hole is cut to 5/16-24 UNF specification before installation. Apply thread lubricant or thread-locking compound as required by the application. Follow applicable torque specifications from engineering documentation or industry fastener standards for ASTM A574 socket cap screws at this diameter and thread pitch.