5/16-18 x 2 1/2 Cone Point Alloy Steel Socket Set Screw is selected for shaft-mounted parts that require a pointed set screw rather than a broad-ended contact.

The pointed end can also serve as a pivot or hanger point where the design intentionally uses focused contact instead of a broad bearing surface.

Use this material identity when the bill of material calls for alloy steel; environmental exposure and surface requirements should still be checked against the application.

Typical review areas for 5/16-18 x 2 1/2 include equipment rebuilds, service records, and exact-size substitutions and couplings, handles, collars, and retained accessories where focused tip engagement is part of the assembly.

The 5/16-18 thread is UNC with 18 TPI, and the 2 1/2 in. length should be compared with tapped depth and cone-point reach. Match the thread and length to the print because length changes can alter where the conical tip seats. Cold Headers works with socket fastener requirements where item-level details affect fit and ordering accuracy.

Technical Highlights

• Point Style: Cone Point
• Material: Alloy Steel
• Thread Size: 5/16-18
• Length: 2 1/2 in.
• Thread Series: UNC
• Threads Per Inch: 18
• Drive Type: Internal Hex