SS M4 Nyloc Nut (Dia 4mm) for 4mm of Bolts Stainless Steel (SS202)

M4 Nyloc Lock Nut — Stainless Steel (SS202)

A nylon-insert lock nut (Nyloc nut) sized for M4 bolts, manufactured from SS202 stainless steel. The nylon collar inside the nut grips the bolt threads to create a self-locking action, keeping the fastening secure even under vibration and repeated mechanical stress — making it a reliable upgrade over standard hex nuts wherever loosening is a concern.

Overview

Unlike plain nuts, this Nyloc design resists back-off from vibration, thermal cycling, and dynamic loads without needing thread-locking adhesive. The SS202 body offers solid corrosion resistance and a clean silver finish, suitable for both indoor electronics work and general-purpose mechanical assembly.

Specifications

Features

• Self-locking nylon insert prevents loosening under vibration
• SS202 construction for good rust and corrosion resistance
• Reusable — can be tightened/loosened multiple times while retaining lock strength
• Compact M4 size for PCB mounting, enclosures, and small mechanical assemblies
• Standard ISO metric thread, compatible with regular M4 bolts and screws

Applications

• Electronics enclosures and PCB mounting
• Robotics and drone assemblies
• 3D printer frames and mechanical builds
• General workshop and DIY fastening
• Vibration-prone assemblies (motors, fans, moving parts)

Package Includes

• M4 Nyloc Lock Nut (SS202) — quantity as selected

Note: Product images are for illustrative purposes; actual product may vary slightly in finish or packaging.