7/16-20 x 3/8 Flat Point Alloy Steel Socket Set Screw with Nylon Insert is chosen when a flat point should seat on a shaft flat while the nylon insert resists backing out. 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.
Handle and control retention often benefits from a headless screw that can be serviced from the socket end.
The nylon pellet is added to create thread drag while leaving the flat bearing face responsible for shaft contact. The 7/16-20 fine-thread rows are uncommon in this flat point locking family, so exact thread identification is important. 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: 7/16-20
- Length: 3/8 in.
- Drive: Internal Hex
- Hex Key Size: 7/32 in.
- Locking Feature: Nylon insert providing prevailing torque
- Nylon Insert Diameter (P): 5/32 in.
- Nylon Insert Location (N): 17/64 in., +/-1/2 pitch
- Dimensional Standard: ASME B18.3
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
