12-28 x 3/4 Alloy Steel Button Head Socket Cap Screw provides a button-head geometry for assemblies that need a finished appearance and internal hex drive engagement. The alloy steel construction fits equipment assemblies where a compact rounded head profile and internal hex drive are specified.

Engineers may use it on guards and access panels where maintenance crews can remove covers without extra external wrench clearance. This geometry also fits automation equipment and conveyor assemblies when the compact head profile helps protect nearby moving components. Unlike a standard socket head cap screw, the button head emphasizes a lower rounded profile and broader exposed head for applications that benefit from that geometry.

For purchasing or maintenance records calling out 12-28 thread and 3/4 in. length, the reference head diameter is 0.383-0.413 in. and the head height is 0.104-0.117 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: 12-28
• Length: 3/4 in.
• Nominal Body Diameter: #12 (.215 in.)
• Head Diameter: 0.383-0.413 in.
• Head Height: 0.104-0.117 in.
• Hex-Key Size: Hex-key size may be 1/8 in. or 5/32 in., depending on manufacturer.
• 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.