2-56 x 5/16 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 2-56 thread and 5/16 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: 2-56
• Length: 5/16 in.
• Nominal Body Diameter: 0.086 in.
• Head Diameter: 0.168-0.197 in.
• Head Height: 0.064 in.
• Hex Socket Size: 0.050 in.
• Drive Type: Internal Hex

Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.