1/4-20 x 5/8 1960 Series 18-8 Stainless Steel Socket Head Cap Screw with Nylon Insert is a stainless socket cap screw for assemblies that combine cleaning exposure with motion or vibration. Nylon contact at the thread adds frictional resistance while preserving the standard internal hex drive arrangement.

This size is often reviewed for automation equipment, robotic end-of-arm tooling, and stainless brackets when a stainless cap screw must retain a familiar socket head form. The nylon element gives the joint a locking feature, but it also limits service temperature compared with an all-metal socket screw.

For rounded exposed heads with the same locking concept, review 18-8 Button Head Socket Cap Screws with Nylon Insert. Need the pellet in a non-catalog size or position? In-house pelletizing gives Cold Headers a practical route for special requests.

Technical Highlights

• Series: 1960 Series
• Material: 18-8 Stainless Steel
• Thread Size: 1/4-20
• Length: 5/8 in.
• 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, 1960 Series

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