3/8-16 x 1 Flat Point Alloy Steel Socket Set Screw with Nylon Insert is a compact locking set screw for parts that need internal hex access and a non-penetrating point. The flat point clamps by friction, so it is commonly chosen for shafts that should not be intentionally marked by a biting point. Use the heat-treated alloy steel body with the nylon locking pellet where the application calls for mechanical fastening rather than stainless material.
Large 5/8 flat point nylon-insert sizes support heavier collars and hubs where the print still calls for shaft-friendly contact. Nylon and brass tip set screws protect by tip material, while a nylon insert locks the thread and the flat point protects by geometry.
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: 3/8-16
- Length: 1 in.
- Drive: Internal Hex
- Hex Key Size: 3/16 in.
- Locking Feature: Nylon insert providing prevailing torque
- Nylon Insert Diameter (P): 9/64 in.
- Nylon Insert Location (N): 1/4 in., +/-1/2 pitch
- Dimensional Standard: ASME B18.3
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
