5-40 x 1/2 Flat Point Alloy Steel Socket Set Screw with Nylon Insert gives purchasing teams a specific alloy steel flat point nylon-insert size for replacement work. 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.
Drive collars and light hub assemblies may specify this style when shaft protection matters more than a point bite. Plain Flat Point Alloy Socket Set Screws may fit the job when the nylon insert is not required.
Cold Headers installs nylon locking pellets in-house at its Chicago facility for this flat point set screw family. 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: 5-40
- Length: 1/2 in.
- Drive: Internal Hex
- Hex Key Size: 1/16 in.
- Locking Feature: Nylon insert providing prevailing torque
- Nylon Insert Diameter (P): 1/16 in.
- Nylon Insert Location (N): 7/64 in., +/-1/2 pitch
- Dimensional Standard: ASME B18.3
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
