1-72 x 5/16 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 used in machinery repair where a rounded head and socket-drive access help keep service work straightforward.

Typical applications include material-handling systems and commercial equipment where the lower rounded profile helps limit snag points. It also supports guards and access panels when maintenance crews can remove covers without extra external wrench clearance. This head style is different from a standard socket head cap screw: it trades the taller cylindrical head form for a rounded button profile used on exposed assemblies.

When checking fit for the 1-72 thread and 5/16 in. length, the reference head diameter is 0.129-0.139 in. and the head height is 0.033-0.039 in. The nominal body diameter and hex-key information below support counterbore planning, socket access, and replacement matching.

Technical Highlights

  • Material: Alloy Steel
  • Thread Size: 1-72
  • Length: 5/16 in.
  • Nominal Body Diameter: #1 (.073 in.)
  • Head Diameter: 0.129-0.139 in.
  • Head Height: 0.033-0.039 in.
  • Hex-Key Size: 0.050 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 1-72

Length

N/A 5/16 in

Material

N/A Alloy Steel

Quantity

N/A 100

Package Type

N/A Box

Search

N/A ASBHSCS.1-72.5/16