5-40 x 5/16 18-8 Stainless Steel Cup Point Socket Set Screw is an 18-8 Stainless Steel Cup Point Socket Set Screw used when a headless internal-hex fastener is specified for retaining or positioning a component.
In shaft collars, hubs, and control components, this screw is often selected where a headless fastener secures a part without external head clearance. 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, environmental exposure, and whether localized point contact is acceptable. This 5-40 x 5/16 size gives buyers a precise callout for ordering. It fits many indoor industrial, outdoor general-service, instrumentation, and routine-cleaning applications. The cup point creates rim-focused contact that may help resist relative movement when the screw, mating material, and installation conditions are appropriate. Cold Headers supports exact-size sourcing for stainless socket set screws, including uncommon lengths and replacement requirements.
Technical Highlights
- Material: 18-8 Stainless Steel
- Thread Size: 5-40
- Length: 5/16 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.
