1/4-28 x 1/2 Cone Point Alloy Steel Socket Set Screw with Nylon Insert is a headless internal-hex fastener for set screw assemblies that need both shaft interlock and thread-level locking action. This double-action layout combines point seating at the shaft with prevailing torque inside the threaded hole. Use this alloy steel body with the nylon locking pellet where the drawing calls for a mechanical set screw, not a corrosion-focused stainless part.
Light-drive keyless hub alternatives sometimes use a cone point where the application allows a marked shaft surface.
Cold Headers supports exact-size and hard-to-find cone point nylon-insert sourcing for industrial repair, replacement, and production requirements. Review thread size, length, hex key size, point style, and mating-surface marking tolerance before replacing it with another set screw. The internal hex recess also keeps installation access compact when the screw is recessed in a hub or collar.
Technical Highlights
- Point: Cone (tapered conical point)
- Material: Alloy Steel
- Thread Size: 1/4-28
- Length: 1/2 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): 15/64 in., ±1/2 pitch
- Dimensional Standard: ASME B18.3
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
