Specify 5-40 x 3/8 18-8 Stainless Steel Socket Set Screw when the thread, length, material, and set-screw point family must match maintenance records or production drawings. 1/2 dog point versions use a short cylindrical tip that locates in a drilled hole or slot for fixed positioning where a pin-like set screw point is specified.

Common application reviews include drawings that require a stainless headless fastener across multiple point styles. Use the listed hex key size to confirm tooling access before selecting the point style, especially in recessed collars, handles, or narrow equipment cavities.

18-8 stainless steel is an 18% chromium and 8% nickel austenitic stainless material referenced to ASTM F880, used for general atmosphere, moisture exposure, and clean appearance. Cold Headers' socket fastener focus is useful when thread, length, material, and point style need to line up with an existing bill of materials.

Technical Highlights

• Material: 18-8 Stainless Steel
• Thread Size: 5-40
• Length: 3/8 in.
• Drive Type: Internal Hex
• Hex Key Size: 1/16 in.
• Available Points: Cone, Flat, Oval, 1/2 Dog
• Dimensional Standard: ASME B18.3
• Material Standard: ASTM F880

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