5/8-11 x 1 Alloy Steel Button Head Socket Cap Screw is used where a rounded, lower-profile head helps keep exposed hardware compact without requiring countersinking. The alloy steel construction is practical for precision assemblies that specify a compact rounded head profile and internal hex drive.

Typical applications include equipment housings and assembly fixtures where the button head presents a clean bearing surface on visible hardware. It also supports material-handling systems and commercial equipment when the lower rounded profile helps limit snag points. The button-head form is specified when the fastener head remains visible or accessible and a smooth rounded profile is preferred.

For purchasing or maintenance records calling out 5/8-11 thread and 1 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 give engineers and buyers a quick check on fit, socket access, and replacement selection.

Technical Highlights

• Material: Alloy Steel
• Thread Size: 5/8-11
• Length: 1 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.