For assemblies that call for an exact set screw size, 4-48 x 3/8 Alloy Steel Cup Point Socket Set Screw provides an Alloy Steel cup point design with internal hex drive access.
In replacement assemblies, hubs, and positioning components, this screw is often selected where the drawing calls out an exact cup point set screw size. The socket drive helps maintenance and assembly teams install or remove the fastener without needing side clearance around a head.
Selection should account for the mating material, available drive access, and whether localized point contact is acceptable. This 4-48 x 3/8 size gives buyers a precise callout for ordering. Always confirm that the cup point contact is acceptable for the mating component and service conditions. The recessed end form is often chosen where a witness mark or indentation on the mating surface is acceptable for the holding method. Cold Headers has supplied specialty socket fasteners since 1962 and helps buyers identify difficult set screw configurations.
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
