1/2-20 x 5/16 Brass Cup Point Socket Set Screw is commonly specified where a component must be secured from within a tapped hole rather than with an external screw head.

Applications often include shaft collars, hubs, and control components, where a headless fastener secures a part without external head clearance. The internal hex recess gives the installer controlled drive engagement while keeping the fastener profile inside the tapped component.

The verified dimensions below help engineering and purchasing teams compare the screw before ordering. Confirm that point contact, brass material, and service conditions fit the application. Final material selection should reflect the mechanical, electrical, environmental, and dimensional requirements of the assembly. The cup point creates rim-focused contact that may help resist relative movement when the screw, mating material, and installation conditions are appropriate. Cold Headers supports exact-size sourcing for brass socket set screws, including uncommon lengths and replacement requirements.

Technical Highlights

• Material: Brass
• Thread Size: 1/2-20
• Length: 5/16 in.
• Point Style: Cup Point
• Nominal Screw Diameter: 0.500 in.
• Hex Socket Size: 1/4 in.
• Cup Point Diameter: 0.270-0.291 in.
• Drive Type: Internal Hex

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