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Specify 5/16-24 x 3/4 18-8 Stainless Steel Hex Head Cap Screw when thread, length, material, and external hex drive must match an existing bill of materials. In this size range it is treated as a hex head cap screw, with the hex head driven by external tooling rather than an internal socket.

Common application reviews include stainless hardware packages, controls, and mounting plates. The hex head format keeps the drive outside the workpiece, which can simplify inspection and service in exposed assemblies.

18-8 stainless steel is an 18% chromium and 8% nickel austenitic stainless material used for ordinary atmosphere, moisture exposure, washdown, and clean appearance. When standard catalog searches are too broad, Cold Headers supports precise sourcing for stainless fasteners and related socket products.

Technical Highlights

  • Material: 18-8 Stainless Steel
  • Thread Size: 5/16-24
  • Length: 3/4 in.
  • Head Style: Hex
  • Drive: External Hex (wrench or socket driven)
  • Width Across Flats: 1.100-1.125 in.
  • Wrench Size: 1 1/8 in.
  • Head Height: 0.455-0.483 in.
  • Dimensional Standard: ASME B18.2.1
  • Material Standard: ASTM F593

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 3/4 in

Maximum Width Across the Flats

 N/A 1.125 in

Minimum Width Across the Flats

 N/A 1.100 in

Maximum Width Across Corners

 N/A 1.299 in

Minimum Width Across Corners

 N/A 1.254 in

Maximum Head Height

 N/A 0.483 in

Minimum Head Height

 N/A 0.455 in

Material

 N/A 18-8 Stainless Steel

Quantity

 N/A 100

Package Type

 N/A Box

Search

 N/A SSHHCMS.5/16-24.3/4

Note

Note

 N/A Less Than Package Quantity Specified Plus 25%.