1/4-20 x 1/2 Alloy Steel Flat Head Socket Cap Screw gives engineers a socket-drive fastener for assemblies where surface projection has to be minimized. The internal hex drive allows installation from above the workpiece, which is helpful in compact equipment where external wrench clearance is limited.

For fixture construction, machine covers, and production equipment, the 82-degree countersunk head helps avoid raised fastener edges without requiring external wrenching space. 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 1/4-20 thread and 1/2 in. length, the verified head data helps engineers compare countersink depth, head clearance, and tooling access. Cold Headers supports purchasing teams and engineering departments that need clear size identification for specialty socket screw requirements.

Technical Highlights

• Material: Alloy Steel
• Thread Size: 1/4-20
• Length: 1/2 in.
• Nominal Body Diameter (B): 0.250 in.
• Head Diameter (A): 0.480-0.531 in.
• Head Height: 0.161 in.
• Hex Socket Size (J): 5/32 in.
• Minimum Key Engagement (T): 0.111 in.
• Drive Type: Internal Hex

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