8-32 x 5/8 18-8 Stainless Steel Flat Head Cap Screw with Nylon Insert is built for a properly cut 82-degree countersink where the head can sit flush or slightly below the surface. A countersunk head bears on the cone rather than a broad underside, so clamp load should not be treated like a full socket head cap screw.
For walk plates, step surfaces, or low-snag equipment panels, confirm countersink geometry, thread engagement, and whether the nylon insert suits the service conditions. For higher preload potential and a deeper socket, review 1960 Series 18-8 SHCS with Nylon Insert.
Slight magnetism from cold working can be normal for 18-8 stainless, so final material selection should reflect the assembly conditions. Cold Headers can help verify the exact 18-8 flat head nylon-insert configuration before quoting pricing and availability.
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
