5/8-11 x 3 1/4 Alloy Steel Button Head Socket Cap Screw is commonly specified when designers need internal-hex access with a broad, finished head profile. The alloy steel construction serves automation systems where reduced snag potential and internal hex drive access are useful.

It is commonly used on precision assemblies and repair work where buyers can match the listed thread and length to drawings or service records. It is also suited to machine covers and service panels when the finished head appearance is useful on exposed equipment. Engineers often choose this style when a standard socket head cap screw would stand taller than the assembly layout allows.

For engineering layouts using 5/8-11 thread and 3 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 keep fit review, tool selection, and replacement ordering tied to verified reference values.

Technical Highlights

• Material: Alloy Steel
• Thread Size: 5/8-11
• Length: 3 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.