6-40 x 5/16 Flat Point Alloy Steel Socket Set Screw with Nylon Insert is a heat-treated alloy steel flat point socket set screw with a nylon insert for prevailing torque. Flat point geometry favors surface protection and repeatable adjustment rather than maximum bite into the mating part. Use the heat-treated alloy steel body with the nylon locking pellet where the application calls for mechanical fastening rather than stainless material.

Machine rebuilds use this family when the service record calls for alloy steel, a flat point, and a nylon insert.

Since 1962, Cold Headers has helped buyers sort closely related socket products that can be easy to confuse. Check thread size, length, socket size, pellet dimensions, shaft-flat condition, and surface-marking tolerance before substitution.

Technical Highlights

• Point: Flat (full bearing face)
• Material: Alloy Steel
• Thread Size: 6-40
• Length: 5/16 in.
• Drive: Internal Hex
• Hex Key Size: 1/16 in.
• Locking Feature: Nylon insert providing prevailing torque
• Nylon Insert Diameter (P): 5/64 in.
• Nylon Insert Location (N): 1/8 in., +/-1/2 pitch
• Dimensional Standard: ASME B18.3

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