Value Collection 307323PR Hex Socket Cap Screw 5/16-24 Unf

Product Description

The VALUE COLLECTION 307323PR is a hex socket cap screw designed for precision fastening in mechanical assemblies, structural connections, and equipment fabrication. This fastener features a 5/16-24 UNF thread size with a 2-inch length under head and a 7/32-inch hex drive. Manufactured from alloy steel with a black oxide finish coating, it meets ASTM A574 standards for mechanical properties and performance. The partial threading design provides a smooth shank section that reduces stress concentration and improves load distribution across the joint. Licensed machinists, millwrights, and maintenance technicians install this type of fastener in production and field service applications.

This cap screw suits close-tolerance applications where a fine thread pitch is required for precise clamping force control or where vibration resistance is important. The 5/16-24 UNF thread profile offers higher thread engagement per unit length compared to coarse thread equivalents, making it appropriate for use in harder materials or thin-section assemblies. Typical applications include machine tool components, hydraulic and pneumatic equipment housings, and industrial machinery frames where alloy steel strength and a corrosion-inhibiting black oxide surface are specified.

Key Features

• 5/16-24 UNF fine thread for precise torque control and vibration resistance
• 2-inch length under head with partial threading for shank load distribution
• 7/32-inch hex socket drive for use with standard Allen keys and hex bit drivers
• Alloy steel construction meets ASTM A574 mechanical requirements
• Black oxide finish provides mild corrosion inhibition and reduces galling during installation

Compatibility

Designed as a standard 5/16-24 UNF hex socket cap screw conforming to ASTM A574, suitable for use in threaded holes or with matching nuts in mechanical and industrial assemblies requiring fine thread alloy steel fasteners.

Installation Notes

Installation is performed by machinists, millwrights, or maintenance technicians using a 7/32-inch hex key or socket bit driver. Ensure the mating thread is clean and free of debris before installation. De-energize all equipment and relieve any stored pressure before fastener service. Apply thread lubricant or anti-seize as required by the application specification to achieve accurate clamping force.