5/16-24 x 3 1/2 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 is selected for production equipment where a lower-profile head is preferred on exposed fastening points.

Engineers may use it on equipment housings and assembly fixtures where the button head presents a clean bearing surface on visible hardware. This geometry also fits 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 5/16-24 thread and 3 1/2 in. length, the reference head diameter is 0.527-0.547 in. and the head height is 0.152-0.166 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: 5/16-24
  • Length: 3 1/2 in.
  • Nominal Body Diameter: 5/16 (.312 in.)
  • Head Diameter: 0.527-0.547 in.
  • Head Height: 0.152-0.166 in.
  • Hex-Key Size: 3/16 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.

Unit of Measure

Specifications

Brands

N/A Cold Headers, Inc.

Diameter

N/A 5/16-24

Length

N/A 3 1/2 in

Material

N/A Alloy Steel

Quantity

N/A 100

Package Type

N/A Box

Search

N/A ASBHSCS.5/16-24.3 1/2