5/16-18 x 5/16 Flat Point Alloy Steel Socket Set Screw with Nylon Insert identifies the exact thread and length for an alloy steel flat point set screw with a nylon insert. The nylon insert works in the female thread, adding prevailing torque while the point handles surface contact. Use the heat-treated alloy steel body with the nylon locking pellet where the application calls for mechanical fastening rather than stainless material.

Fixtures that move between production runs may use the flat face to reduce surface damage during repeated clamping.

Pelletized flat point screws keep the thread-locking feature separate from the non-penetrating point geometry. Cold Headers focuses on exact-size socket fastener sourcing for production, repair, and plant maintenance needs. 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: 5/16 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.