10-32 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. Where strength matters more than stainless material, Alloy Steel Flat Head Socket Cap Screws with Nylon Insert may be the better route.

The 18% chromium and 8% nickel austenitic stainless material is commonly selected for general corrosion resistance, clean appearance, and ordinary washdown exposure. Cold Headers can help verify the exact 18-8 flat head nylon-insert configuration before quoting pricing and availability.

Technical Highlights

• Material: 18-8 Stainless Steel
• Thread Size: 10-32
• Length (overall - includes head): 5/8 in.
• Head Style: 82° Countersunk Flat
• Drive Type: Internal Hex
• Locking Feature: Nylon insert providing prevailing torque
• Nylon Insert Diameter (P): 3/32 in.
• Nylon Insert Location (N): 5/32 in. +/-1/2 pitch
• Head Dimensions: ASME B18.3

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