5/16-18 x 1 3/4 Alloy Steel Flat Head Socket Cap Screw helps solve clearance and snag-point issues on panels, guards, and fixture plates that require a flat installed face. Its 82-degree countersunk head is useful when designers want a minimal surface profile while retaining internal hex access for installation and service work.

Engineers specify this style for automation equipment, robotic tooling, conveyor systems, and packaging machinery that benefit from reduced head projection. As an alloy steel socket fastener, it is selected for industrial assemblies that require a durable internal-hex screw where countersunk geometry and socket-drive access are important. The internal hex drive supports top-side socket engagement where side access is limited.

For this 5/16-18 thread and 1 3/4 in. length, the verified head data helps engineers compare countersink depth, head clearance, and tooling access. Cold Headers helps buyers match thread, length, and head style when replacement hardware must align with existing countersunk components.

Technical Highlights

• Material: Alloy Steel
• Thread Size: 5/16-18
• Length: 1 3/4 in.
• Nominal Body Diameter (B): 0.312 in.
• Head Diameter (A): 0.600-0.656 in.
• Head Height: 0.198 in.
• Hex Socket Size (J): 3/16 in.
• Minimum Key Engagement (T): 0.135 in.
• Drive Type: Internal Hex

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