1/4-28 x 3/8 Cone Point Alloy Steel Socket Set Screw with Nylon Insert provides a tapered conical point for deep seating plus a nylon insert that helps develop prevailing torque in the thread. The cone point is selected for mechanical interlock because the tapered tip seats into a spot or dimple instead of only pressing on the surface. 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.
Drive collars, couplings, and shaft-mounted stops can use this style when a stronger locating action is needed than a flat contact face.
Cold Headers provides specialty set screw support for maintenance teams that need the same length and locking style already in use. Review thread size, length, hex key size, point style, and mating-surface marking tolerance before replacing it with another set screw.
Technical Highlights
- Point: Cone (tapered conical point)
- Material: Alloy Steel
- Thread Size: 1/4-28
- Length: 3/8 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.
