Value Collection 011241PR Hex Socket Cap Screw 5/16-24 Unf

Product Description

The VALUE COLLECTION 011241PR is a partially threaded hex socket cap screw designed for high-strength fastening applications in mechanical assemblies, tooling, and equipment maintenance. It features a 5/16-24 UNF thread size and a 2-inch length under the head, providing a robust grip in fine-thread applications. The screw is machined from alloy steel and finished with a black oxide coating, which offers moderate corrosion resistance and a low-reflectivity surface. Drive engagement is through a 1/4-inch internal hex socket. This fastener meets ASME/ANSI B18.3 and ASTM A574 standards, making it suitable for critical torque-bearing applications across industrial and trade environments.

This cap screw is used in a wide range of mechanical and structural assembly tasks, including HVAC equipment frames, pump mounting, motor mounts, and general machinery. The fine UNF thread pitch makes it well suited for applications requiring precise clamping force and resistance to loosening from vibration. It is commonly installed by machinists, millwrights, HVAC technicians, and maintenance mechanics working with steel or cast components where socket-head fasteners are required for clearance or torque reasons.

Key Features

• 5/16-24 UNF fine thread for precise clamping and vibration resistance
• Partially threaded shank provides a smooth bearing surface for alignment and shear loads
• Alloy steel construction meets ASTM A574 high-strength requirements
• Black oxide finish reduces surface corrosion and light reflection
• 1/4-inch hex drive socket for use with standard Allen keys and hex bit drivers
• Conforms to ASME/ANSI B18.3 dimensional standards

Compatibility

Designed as a standard ASME/ANSI B18.3 hex socket cap screw suitable for use in any tapped hole or threaded insert accepting a 5/16-24 UNF partially threaded fastener.

Installation Notes

Installation requires a 1/4-inch hex key or socket bit driver. Ensure the mating tapped hole is clean, free of debris, and correctly sized for 5/16-24 UNF threads before installation. Apply thread lubricant or thread-locking compound as required by the application specification. Follow applicable torque guidelines for ASTM A574 alloy steel fasteners as defined by your engineering documentation or applicable industry standards.