3/8-16 x 1 18-8 Stainless Steel Button Head Socket Cap Screw with Nylon Insert combines internal hex drive access with a thread-mounted nylon pellet for prevailing torque. The nylon pellet presses against the mating thread for prevailing torque without changing the head geometry.

The low-dome head is not a countersunk style; seating and clearance should be checked against the mating surface and surrounding equipment. This size is often reviewed for conveyor side rails, guide brackets, and packaging-line guards when stainless material, a button head, and a locking pellet are all specified.

The nylon element limits service temperature compared with an all-metal screw; no numeric service limit is implied by this listing. For higher preload potential with a deeper socket, compare 18-8 Socket Head Cap Screws with Nylon Insert. Since 1962, Cold Headers has helped industrial buyers locate specialty socket products for production, repair, and replacement requirements.

Technical Highlights

• Material: 18-8 Stainless Steel
• Thread Size: 3/8-16
• Length: 1 in.
• Head Style: Button Head
• Drive Type: Internal Hex
• Locking Feature: Nylon insert providing prevailing torque
• Nylon Insert Diameter (P): 9/64 in.
• Nylon Insert Location (N): 7/32 in. +/-1/2 pitch
• Head Dimensions: ASME B18.3

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