Value Collection 40237 Hex Socket Cap Screw 3/8-24 Unf

Product Description

The Value Collection 40237 is a hex socket cap screw designed for precision fastening applications requiring a fine-threaded, high-strength connection. Built from alloy steel with a black oxide finish, this fastener meets ASME/ANSI B18.3 and ASTM A574 standards. It features a 3/8-24 UNF thread size, a 3/4-inch length under the head, and is fully threaded from tip to head. The 5/16-inch hex drive accepts a standard hex key or Allen wrench. At 0.01 pounds, it is a compact, lightweight fastener suited for mechanical assemblies, machinery maintenance, and equipment fabrication work performed by millwrights, machinists, and maintenance technicians.

This cap screw is used in applications where fine thread engagement and controlled clamping force are required. Fully threaded construction makes it well-suited for through-hole or short-engagement blind-hole installations. The black oxide coating provides mild corrosion resistance and reduces galling during installation. Typical use cases include machine frames, jigs, fixtures, and mechanical sub-assemblies in industrial and commercial maintenance environments.

Key Features

• 3/8-24 UNF fine thread for precise engagement and higher tensile load capacity compared to coarse thread equivalents
• Fully threaded along the entire shank length
• 5/16-inch hex socket drive compatible with standard hex keys and Allen drivers
• Alloy steel construction meets ASTM A574 mechanical requirements
• Black oxide finish provides mild corrosion and galling resistance
• Meets 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 3/8-24 UNF fully threaded fastener with a 5/16-inch hex drive.

Installation Notes

Install using a calibrated hex key or Allen driver sized at 5/16 inch. De-energize and lock out equipment before servicing any assembly that requires fastener removal or replacement. Do not exceed the torque rating specified by the equipment manufacturer for this thread size and material grade. Inspect the mating thread for damage or contamination before installation to ensure full thread engagement.