RS PRO
RS PRO, Zinc Plated Steel Lock Nut, DIN 985, M20
Part No.
122-4377
Procurement Intelligence
RS PRO DIN 985 self-locking nuts are metric steel fasteners with integrated nylon inserts for vibration resistance in mechanical assemblies. Installation requires standard wrench engagement without special tools. Critical verification: confirm nylon insert integrity and zinc plating thickness (8-12 µm) to prevent corrosion and ensure lock performance across thermal cycles.
Vibration-resistant fastening M20 applications
Before ordering — verify:
| ☐ | Nylon insert degradation temperature |
| ☐ | Zinc plating adhesion check |
| ☐ | Vibration lock retention limits |