Value Collection 581456PS Hex Socket Cap Screw 5/16-24 Unf

Product Description

The VALUE COLLECTION 581456PS is a 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 with a 5-inch length under head and partial threading along the shank. The screw is driven with a 1/4-inch hex key. Constructed from alloy steel with a black oxide finish, it delivers solid tensile strength and basic corrosion resistance in dry or lightly oiled environments. This fastener meets ASME/ANSI B18.3 and ASTM A574 standards, making it suitable for demanding mechanical and industrial applications. It weighs 0.01 pounds.

This socket cap screw is used in a wide range of industrial, maintenance, and manufacturing settings where a flush or recessed fastener head is required. Partial threading provides a smooth shank section useful for precision alignment in close-tolerance assemblies. Typical applications include machine frames, fixtures, jigs, and equipment enclosures. Machinists, millwrights, and maintenance technicians commonly install this type of fastener where torque retention and a clean fastener profile are priorities.

Key Features

• 5/16-24 UNF thread for fine-pitch engagement and strong clamping force
• 5-inch length under head with partial threading for shank clearance fits
• 1/4-inch hex drive compatible with standard hex keys and allen wrenches
• Alloy steel construction meets ASTM A574 tensile requirements
• Black oxide coating provides mild corrosion resistance and reduces light reflection
• 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 application requiring a 5/16-24 UNF partially threaded fastener with a 1/4-inch hex drive.

Installation Notes

Install using a 1/4-inch hex key or socket driver. Ensure the mating threaded hole is clean and free of debris before installation. De-energize any equipment and follow applicable OSHA lockout/tagout procedures before fastener replacement in powered machinery. Do not use impact tools on socket cap screws unless the application specifically allows it, as this can damage the drive recess or over-torque the joint.