1/4-28 x 3/16 Flat Point Alloy Steel Socket Set Screw with Nylon Insert fits applications that need a headless internal-hex screw, broad point contact, and a locking insert. This point style is useful when the part may be loosened, slid, and reclamped during changeover or setup. 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. 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 installs nylon locking pellets in-house at its Chicago facility for this flat point set screw family. Cold Headers has supplied specialty socket fasteners since 1962 and keeps point style, insert type, and size language clear. 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: 1/4-28
- Length: 3/16 in.
- Drive: Internal Hex
- Hex Key Size: 1/8 in.
- Locking Feature: Nylon insert providing prevailing torque
- Nylon Insert Diameter (P): 7/64 in.
- Nylon Insert Location (N): 3/16 in., +/-1/2 pitch
- Dimensional Standard: ASME B18.3
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
