1/4-28 x 1/4 Knurled Point 18-8 Stainless Steel Socket Set Screw is used where a headless stainless screw must engage the mating surface through a serrated cup point.

Cup-point serrations add bite at the contact area, making this style useful for shaft collars, stops, knobs, and adjustment parts that need localized holding contact.

The 18-8 stainless construction can be appropriate for instrumentation, packaging equipment, enclosures, and outdoor general-service hardware when the environment and load are compatible with the specified material.

Use cases for 1/4-28 x 1/4 include fixtures, removable stops, shaft-mounted accessories, and couplings and automation equipment, packaging machinery, and conveyor components where a headless internal-hex screw keeps the component exterior clear.

For 1/4-28, UNF has 28 threads per inch; check the 1/4 in. length against tapped depth and point location. Use the thread designation and length together when matching prints, service records, or prior purchase history. Cold Headers has supplied specialty socket fasteners since 1962 and can help identify uncommon stainless configurations.

Technical Highlights

• Point Style: Knurled Point
• Material: 18-8 Stainless Steel
• Thread Size: 1/4-28
• Length: 1/4 in.
• Thread Series: UNF
• Threads Per Inch: 28
• Drive Type: Internal Hex