Value Collection 40875 Button Socket Cap Screw 1/4-20

Product Description

The VALUE COLLECTION 40875 is a fully threaded button socket cap screw designed for applications where a low-profile head and a secure hex socket drive are required. Built from alloy steel with a black oxide coating, this fastener offers moderate corrosion resistance and a clean, finished appearance suited to mechanical assemblies, fixtures, and equipment panels. The 1/4-20 UNC thread and 1/2-inch length under the head make it a common choice in light-duty structural and machine assembly work. Drive size is 5/32-inch hex socket. Hardness is rated at 36-43 HRC, indicating high-strength alloy construction appropriate for demanding mechanical environments.

This screw is used across general industrial, mechanical, and light fabrication applications. The button head profile reduces snagging on moving components or exposed assemblies, making it a practical choice for panels, guards, housings, and brackets. The black oxide finish is commonly used in applications where a non-reflective surface is preferred. Typical installers include machinists, maintenance technicians, millwrights, and equipment assemblers working in both commercial and light industrial settings.

Key Features

• Fully threaded 1/4-20 UNC right-hand thread for consistent engagement throughout the fastener length
• Button head design provides a low-profile seating surface to reduce interference with adjacent components
• 5/32-inch hex socket drive for use with standard Allen or hex key tooling
• Alloy steel construction with 36-43 HRC hardness for high-strength clamping force
• Black oxide coating provides mild corrosion resistance and a non-reflective finish
• Manufactured to ANSI/ASME B18.3 and ASTM F835 standards

Compatibility

Designed as a standard 1/4-20 UNC button socket cap screw suitable for use in general mechanical assemblies, equipment housings, fixtures, and fabricated components requiring a low-profile head fastener per ANSI/ASME B18.3 and ASTM F835 specifications.

Installation Notes

Installation requires a 5/32-inch hex key or Allen driver. Ensure mating threads are clean and free of debris before installation. Do not exceed the rated torque for 1/4-20 alloy steel fasteners as specified by the applicable assembly standard. Apply thread-locking compound only if specified by the equipment manufacturer.