5-40 x 3/4 Alloy Steel Flat Head Socket Cap Screw provides an alloy steel flat head option for machine components designed around countersunk socket screws. The flat-head profile is particularly useful around moving stock, operator contact areas, and assemblies where exposed screw heads should not project.

Common applications include electronics enclosures, access panels, tooling stations, and assembly systems where a smooth exposed face supports safe handling. The material designation gives purchasing teams a clear match for equipment documents that call out alloy steel flat head socket cap screws. The internal hex drive supports top-side socket engagement where side access is limited.

For this 5-40 thread and 3/4 in. length, the verified head data helps engineers compare countersink depth, head clearance, and tooling access. Cold Headers supports exact-size sourcing for specialty socket products and uncommon lengths used in industrial maintenance and production work.

Technical Highlights

  • Material: Alloy Steel
  • Thread Size: 5-40
  • Length: 3/4 in.
  • Nominal Body Diameter (B): 0.125 in.
  • Head Diameter (A): 0.240-0.281 in.
  • Head Height: 0.090 in.
  • Hex Socket Size (J): 5/64 in.
  • Drive Type: Internal Hex

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 5-40

Length

N/A 3/4 in

Material

N/A Alloy Steel

Quantity

N/A 100

Package Type

N/A Box

Search

N/A ASFHSCS.5-40.3/4

Basic Diameter

N/A 0.125 in

Maximum Head Diameter

N/A 0.281 in

Minimum Head Diameter

N/A 0.240 in

Hex Socket Size

N/A 5/64 in