5/16-18 x 7/16 Flat Point Alloy Steel Socket Set Screw with Nylon Insert is the nylon-insert version of a flat point socket set screw for compact industrial assemblies. Use this style where the assembly needs a broad bearing face and a separate thread-locking feature. 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.

Cold Headers can help identify the correct flat point alloy set screw when the drawing calls out a locking insert. 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: 5/16-18
• Length: 7/16 in.
• Drive: Internal Hex
• Hex Key Size: 5/32 in.
• Locking Feature: Nylon insert providing prevailing torque
• Nylon Insert Diameter (P): 1/8 in.
• Nylon Insert Location (N): 7/32 in., +/-1/2 pitch
• Dimensional Standard: ASME B18.3

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