1/4-20 x 5/8 Brass Button Head Socket Cap Screw provides a brass socket-drive option for assemblies that need a broad bearing surface and a smoother head profile. The broader bearing surface can be helpful on covers, light brackets, and equipment panels where the head remains visible. The material supports clean machining and a finished look for commercial hardware, instruments, and visible assemblies.

Appropriate uses include machine covers and automation equipment, where internal hex drive access supports installation where side clearance for external tooling is limited. It can also fit instrumentation and precision equipment, where the finished button head keeps visible fastening points smooth while the material machines cleanly. The internal hex drive supports socket-key installation in compact equipment without relying on an external wrenching surface.

For the 1/4-20 thread and 5/8 in. length, the reference head diameter is 0.419-0.437 in. and the head height is 0.122-0.132 in. Use the verified dimensions below when checking head projection, socket access, and replacement fit.

Technical Highlights

• Material: Brass
• Thread Size: 1/4-20
• Length: 5/8 in.
• Nominal Body Diameter: 1/4 (.250 in.)
• Head Diameter: 0.419-0.437 in.
• Head Height: 0.122-0.132 in.
• Hex-Key Size: 5/32 in.
• Drive Type: Internal Hex

Reference dimensions may vary slightly by manufacturer.