5-40 x 1 18-8 Stainless Steel Button Head Socket Cap Screw supports compact fastening where external wrench clearance is limited and a clean exposed head is preferred. The button head remains above the surface and is chosen for its rounded profile rather than for a recessed installation. The internal hex drive supports socket-key installation where external wrenching space is limited.

Typical applications include packaging machinery and material-handling systems, where 18-8 stainless steel is often selected for clean appearance and moisture resistance. It can also serve packaging machinery and material-handling systems, where 18-8 stainless steel is often selected for clean appearance and moisture resistance. The rounded head profile is useful on visible or frequently handled assemblies.

Engineers may select 18-8 stainless steel for general corrosion resistance, clean appearance, and resistance to normal atmospheric exposure. For the 5-40 thread and 1 in. length, the reference head diameter is 0.226-0.238 in. and the head height is 0.058-0.066 in.

Technical Highlights

• Material: 18-8 Stainless Steel
• Thread Size: 5-40
• Length: 1 in.
• Nominal Body Diameter: #5 (.125 in.)
• Head Diameter: 0.226-0.238 in.
• Head Height: 0.058-0.066 in.
• Hex-Key Size: 5/64 in.
• Drive Type: Internal Hex

Reference dimensions may vary slightly by manufacturer.

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