5/16-18 x 1/2 Cone Point Alloy Steel Socket Set Screw with Nylon Insert combines heat-treated alloy steel construction, internal hex drive access, and a nylon insert in one cone-point set screw. The nylon insert does not contact the shaft; it works in the female thread to add friction during installation and removal. 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.
Replacement assemblies with dimpled shafts can keep the original point style while adding a nylon insert for thread friction.
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: 5/16-18
- Length: 1/2 in.
- Drive: Internal Hex
- Hex Key Size: 5/32 in.
- Locking Feature: Nylon insert providing prevailing torque
- Nylon Insert Diameter (P): 1/8 in.
- Nylon Insert Location (N): 19/64 in., ±1/2 pitch
- Dimensional Standard: ASME B18.3
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
