When a drawing or maintenance bill calls for a cup point set screw, 5-40 x 5/8 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 5-40 x 5/8 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.

Technical Highlights

• Material: Alloy Steel
• Thread Size: 5-40
• Length: 5/8 in.
• Point Style: Cup Point
• Nominal Screw Diameter: 0.125 in.
• Hex Socket Size: 1/16 in.
• Cup Point Diameter: 0.057-0.067 in.
• Drive Type: Internal Hex

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