5/8-11 x 2 1/4 Alloy Steel Button Head Socket Cap Screw helps machine builders secure covers, brackets, and housings while keeping the head smooth and accessible. The alloy steel construction supports machine construction where the drawing calls for reduced head projection and a socket-drive button head.

Common installation points include machine covers and service panels where the finished head appearance is useful on exposed equipment. It may also be specified for control enclosures and equipment housings when the rounded head reduces sharp edges on handled surfaces. The button-head form is specified when the fastener head remains visible or accessible and a smooth rounded profile is preferred.

When matching the 5/8-11 thread and 2 1/4 in. length, the reference head diameter is 0.970-1.000 in. and the head height is 0.311-0.331 in. The nominal body diameter and hex-key information below help confirm fit, tool clearance, and replacement requirements.

Technical Highlights

• Material: Alloy Steel
• Thread Size: 5/8-11
• Length: 2 1/4 in.
• Nominal Body Diameter: 5/8 (.625 in.)
• Head Diameter: 0.970-1.000 in.
• Head Height: 0.311-0.331 in.
• Hex-Key Size: 3/8 in.
• Drive Type: Internal Hex

Reference dimensions may vary slightly by manufacturer.

Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.