6-40 x 3/8 1960 Series Alloy Steel Socket Head Cap Screw with Nylon Insert combines alloy steel construction, an internal hex drive, and a nylon locking insert in one cataloged fastener. The insert adds prevailing-torque resistance through localized nylon contact, so the fastener can be considered where service conditions call for added loosening resistance.

In industrial equipment, material-handling systems, and machine frames, the internal hex drive allows compact tool access while the alloy steel body keeps the product aligned with drawings that specify this material. Engineers should confirm that the selected size, nylon insert position, and mating threads suit the assembly before substituting from a standard socket cap screw.

Since 1962, Cold Headers has helped industrial buyers source specialty socket products, unusual lengths, and replacement configurations.

Technical Highlights

• Series: 1960 Series
• Material: Alloy Steel
• Thread Size: 6-40
• Length: 3/8 in.
• Drive Type: Internal Hex
• Locking Feature: Nylon insert providing prevailing torque
• Nylon Insert Diameter (P): 5/64 in.
• Nylon Insert Location (N): 1/8 in. +/- 1/2 pitch

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