1/4-20 x 5/16 Cone Point Alloy Steel Socket Set Screw with Nylon Insert is specified where a tapered conical point should nest into a prepared shaft spot while the nylon insert adds prevailing torque. 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.

Automation equipment may use this screw in compact hubs, guide collars, and actuator-linked parts with limited outside clearance.

Cold Headers can help source hard-to-find cone point nylon-insert set screws while preserving the exact SKU requirement. 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: 1/4-20
• Length: 5/16 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): 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.