Value Collection 581454PS Hex Socket Cap Screw 5/16-24 Unf

Product Description

The VALUE COLLECTION 581454PS is a hex socket cap screw designed for high-strength fastening in precision mechanical assemblies. It features a 5/16-24 UNF thread and measures 4.5 inches in length under the head. The screw is partially threaded and driven with a 1/4-inch hex key. Constructed from alloy steel with a black oxide finish, it delivers corrosion resistance and a clean, low-reflectance appearance. This fastener meets ASME/ANSI B18.3 and ASTM A574 standards, making it suitable for applications that require verified mechanical performance. Machinists, maintenance technicians, and assembly professionals install this type of fastener across a wide range of industrial and mechanical equipment.

This screw is suited for use in light industrial machinery, mechanical assemblies, and equipment requiring fine-thread engagement with controlled clamping force. The 5/16-24 UNF thread pitch offers finer thread engagement than coarse-thread equivalents, making it a common choice in applications where vibration resistance or precise torque control is a priority. The black oxide coating is appropriate for indoor and low-moisture environments where mild surface protection is needed.

Key Features

• 5/16-24 UNF fine thread for precise engagement and vibration resistance
• 4.5-inch length under head — partially threaded for standard cap screw grip
• 1/4-inch hex drive socket for use with standard hex keys or Allen drivers
• Alloy steel construction meets ASTM A574 mechanical requirements
• Black oxide finish provides mild corrosion resistance and low glare appearance
• Conforms to ASME/ANSI B18.3 dimensional standards

Compatibility

Designed as a standard ASME/ANSI B18.3 hex socket cap screw for use in any application requiring a 5/16-24 UNF partially threaded fastener with a 1/4-inch hex drive.

Installation Notes

Installation is performed with a 1/4-inch hex key or socket driver. Confirm that the mating threaded hole is clean and free of debris before installation. Power down or de-energize any equipment before servicing fasteners in live assemblies. Follow applicable torque guidelines from the equipment manufacturer or relevant industry standards for 5/16-24 UNF alloy steel fasteners.