1/4-20 x 1 1/4 18-8 Stainless Steel Flat Head Cap Screw with Nylon Insert keeps the top surface clear when a matching inch-series countersink is prepared. 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.

This size is often reviewed for conveyor transfer plates, guide covers, and moving product areas when stainless material, a flush head, and locking friction are all specified. For higher preload potential and a deeper socket, review 1960 Series 18-8 SHCS with Nylon Insert.

The 18% chromium and 8% nickel austenitic stainless material is commonly selected for general corrosion resistance, clean appearance, and ordinary washdown exposure. Since 1962, Cold Headers has helped distributors, repair teams, and OEM sourcing projects locate specialty socket products.

Technical Highlights

• Material: 18-8 Stainless Steel
• Thread Size: 1/4-20
• Length (overall - includes head): 1 1/4 in.
• Head Style: 82° Countersunk Flat
• Drive Type: Internal Hex
• Locking Feature: Nylon insert providing prevailing torque
• Nylon Insert Diameter (P): 7/64 in.
• Nylon Insert Location (N): 3/16 in. +/-1/2 pitch
• Head Dimensions: ASME B18.3

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