Value Collection MP72104 Hex Socket Cap Screw 1/4-20 Unc

Product Description

The Value Collection MP72104 is a hex socket cap screw designed for general mechanical fastening applications requiring a compact drive profile and high tensile strength. The 1/4-20 UNC thread and 3/16-inch hex drive make it compatible with standard hex keys and Allen-type drivers. The screw measures 1-1/2 inches in length under the head and is partially threaded, which aids in clamping and alignment in through-bolt applications. Manufactured from alloy steel with a black oxide coating, it offers improved corrosion resistance compared to bare steel while maintaining dimensional precision to ASME B18.3 and ASTM A574 standards. This package contains 50 screws.

These cap screws are suited for use in machinery, equipment assemblies, jigs, fixtures, and industrial maintenance applications. The 1/4-20 UNC thread is one of the most common fastener sizes found in general manufacturing, HVAC equipment frames, electrical enclosures, and mechanical subassemblies. The partial threading is appropriate for applications where the unthreaded shank must bear shear loads or align mating components precisely before fastening.

Key Features

• 1/4-20 UNC thread for compatibility with standard tapped holes in this size range
• 1-1/2 inches of length under the head — partially threaded for shear and alignment applications
• 3/16-inch hex socket drive for use with Allen keys or hex bit drivers
• Alloy steel construction meets ASTM A574 for high-strength fastener requirements
• Black oxide finish improves corrosion resistance and reduces surface reflectivity
• Conforms to ASME B18.3 dimensional standards

Compatibility

Designed as a standard-dimension hex socket cap screw conforming to ASME B18.3, suitable for use in any 1/4-20 UNC tapped hole application requiring a socket-head fastener.

Installation Notes

Installation is performed with a 3/16-inch hex key or Allen-type bit driver. Ensure mating threads are clean and properly tapped to UNC specification before fastening. Do not exceed the rated torque range appropriate for 1/4-20 alloy steel fasteners per applicable mechanical standards. De-energize and lock out all equipment before replacing or installing fasteners on live machinery or electrical enclosures.