For assemblies that call for a brass set screw by exact size, 1/2-20 x 1/4 Brass Cup Point Socket Set Screw identifies the required material, cup point geometry, thread, and length.

In bracket assemblies, equipment panels, and retention work, this screw is often selected where localized holding contact is acceptable for the mating surface. The socket drive helps maintenance and assembly teams install or remove the fastener without needing side clearance around a head.

Selection should account for mating material, drive access, conductivity requirements, environmental exposure, and whether localized point contact is acceptable. This 1/2-20 x 1/4 size gives buyers a precise callout for ordering. It can fit electrical equipment, controls, instrumentation, fixtures, panels, and light-duty machinery when brass is specified. Buyers should review the shaft or component surface condition, available drive access, electrical requirements, and required holding action before selecting this item. Cold Headers is a useful source when the part number, thread, point style, brass material, or length is difficult to locate through standard catalog channels.

Technical Highlights

• Material: Brass
• Thread Size: 1/2-20
• Length: 1/4 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.