DIN 985 — Hexagon Nuts with Non-Metallic Insert (Self-Locking)
Standard: DIN 985
DIN 985 defines metric hexagon nuts with a nylon insert — the self-locking nut now largely covered by ISO 7040 and ISO 10511.
What It Covers
- Nylon insert lock nuts
- Prevailing torque
- Temperature limits
- Legacy vs ISO 7040 equivalence