Value Collection -40234-1 Hex Socket Cap Screw 5/16-24 Unf

Product Description

The VALUE COLLECTION -40234-1 is a partially threaded hex socket cap screw designed for precision fastening applications across mechanical assembly, maintenance, and repair work. It features a 5/16-24 UNF thread size, a length under head of 2-1/4 inches, and a 1/4-inch hex drive. Constructed from alloy steel with a black oxide finish coating, it meets the dimensional and mechanical requirements of ASME/ANSI B18.3 and ASTM A574. The black oxide coating provides moderate corrosion resistance and reduces light reflection in finished assemblies. This fastener is typically installed by machinists, millwrights, and maintenance technicians.

This screw is suited for use in general industrial, mechanical, and equipment assembly applications where fine-thread engagement and socket-drive access are required. The fine 24-thread-per-inch UNF pitch provides stronger thread engagement and better resistance to loosening under vibration compared to coarse-thread equivalents. Typical installation scenarios include machine frames, jigs, fixtures, and mechanical enclosures requiring a flush or recessed fastener head. Minimum order quantity is 25 pieces.

Key Features

• 5/16-24 UNF fine thread for high-engagement strength and vibration resistance
• 2-1/4-inch length under head accommodates deeper fastening applications
• 1/4-inch hex socket drive for use with standard Allen keys or socket bits
• Partially threaded shank for precise clamping and shoulder alignment
• Alloy steel construction meets ASTM A574 mechanical requirements
• Black oxide coating for moderate corrosion resistance and low-glare finish

Compatibility

Designed as an OEM-style replacement or standard hex socket cap screw for industrial and mechanical assemblies requiring 5/16-24 UNF fine-thread fasteners conforming to ASME/ANSI B18.3 and ASTM A574 standards.

Installation Notes

Install using a 1/4-inch hex key or socket bit driver. Ensure mating threads are clean and free of debris before installation. Always torque to values specified by the equipment manufacturer or applicable engineering standards for the fastener size and grade. Do not exceed rated torque for the thread size and material grade.