5/16-24 x 1/2 18-8 Stainless Steel Flat Head Socket Cap Screw provides a stainless countersunk socket fastener option for drawings that call for a flat head profile and internal hex drive engagement.

Because the drive is recessed, the fastener can be installed without side access while still supporting a smooth exposed surface after assembly. It is often used in electronic enclosures, control panels, and production equipment, where reduced surface projection helps protect wiring paths and adjacent components. The 18-8 stainless steel material is selected for general corrosion resistance, clean appearance, and ordinary moisture exposure in indoor industrial environments and general-purpose outdoor equipment.

Cold Headers helps buyers source precise socket fastener configurations without changing the thread, length, material, or head style called out on the drawing. For this 5/16-24 thread and 1/2 in. length, the dimensional data helps engineers confirm body diameter, head clearance, countersink fit, and socket tooling before release to purchasing or maintenance.

Technical Highlights

  • Material: 18-8 Stainless Steel
  • Thread Size: 5/16-24
  • Length: 1/2 in.
  • Nominal Body Diameter: 0.312 in.
  • Head Diameter: 0.600-0.656 in.
  • Head Height: 0.198 in.
  • Hex Socket Size: 3/16 in.
  • Drive Type: Internal Hex
  • Minimum Key Engagement: 0.135 in.

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 1/2 in

Material

N/A 18-8 Stainless Steel

Quantity

N/A 100

Package Type

N/A Box

Search

N/A SSFHSCS.5/16-24.1/2

Note

Note

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