When a drawing or maintenance bill calls for a cup point set screw, 4-40 x 7/16 Alloy Steel Cup Point Socket Set Screw identifies the required Alloy Steel thread and length clearly for purchasing.
In industrial repairs, pulley hubs, and shaft-mounted components, this screw is often selected where drive access is available through the threaded part. 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 4-40 x 7/16 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 cup point creates rim-focused contact that can help resist relative movement when the screw, mating material, and installation conditions are appropriate. Cold Headers supports exact-size sourcing for socket set screws, including short runs, uncommon lengths, and replacement requirements.
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
