1/4-28 x 3/8 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 suited to mechanical assemblies where the drawing calls for a low-profile rounded head and internal hex drive access.

Typical applications include brackets, fixtures, and tooling assemblies where the broad head distributes contact over a wider seating area. It also supports brackets, fixtures, and tooling assemblies when the broad head distributes contact over a wider seating area. Selection is usually driven by head shape, socket access, and exposed-surface requirements rather than by the geometry of a standard socket head cap screw.

For drawings using the 1/4-28 thread and 3/8 in. length, the reference head diameter is 0.419-0.437 in. and the head height is 0.122-0.132 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: 1/4-28
  • Length: 3/8 in.
  • Nominal Body Diameter: 1/4 (.250 in.)
  • Head Diameter: 0.419-0.437 in.
  • Head Height: 0.122-0.132 in.
  • Hex-Key Size: 5/32 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.

Unit of Measure

Specifications

Brands

N/A Cold Headers, Inc.

Diameter

N/A 1/4-28

Length

N/A 3/8 in

Material

N/A Alloy Steel

Quantity

N/A 100

Package Type

N/A Box

Search

N/A ASBHSCS.1/4-28.3/8