3/8-24 x 3 1/2 Alloy Steel Button Head Socket Cap Screw is selected for socket-drive fastening where head projection, appearance, and bearing area all matter. The alloy steel construction is suited to mechanical assemblies where the drawing calls for a low-profile rounded head and internal hex drive access.

Suitable assembly locations include equipment housings and assembly fixtures where the button head presents a clean bearing surface on visible hardware. The same head style is useful for 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 drawings using the 3/8-24 thread and 3 1/2 in. length, the reference head diameter is 0.636-0.656 in. and the head height is 0.185-0.199 in. The nominal body diameter and hex-key information below support fit checks, tool access planning, and replacement verification.

Technical Highlights

• Material: Alloy Steel
• Thread Size: 3/8-24
• Length: 3 1/2 in.
• Nominal Body Diameter: 3/8 (.375 in.)
• Head Diameter: 0.636-0.656 in.
• Head Height: 0.185-0.199 in.
• Hex-Key Size: 7/32 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.