Designed for compact set-screw fastening, 4-40 x 2 Alloy Steel Cup Point Socket Set Screw combines Alloy Steel construction with a cup-shaped point for localized contact at the mating surface.
Applications often include industrial repairs, pulley hubs, and shaft-mounted components, where drive access is available through the threaded part. 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 to the application before ordering. Always confirm that the cup point contact is acceptable for the mating component and service conditions. Buyers should review the shaft or component surface condition, drive access, and required holding action before selecting this point style. Cold Headers is a useful source when the part number, thread, point style, or length is difficult to locate through standard catalog channels.
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
