Schnorr K-type conical serrated safety washer M16. Combines spring preload with serration bite — replaces split-ring washers that lose preload with time.
| Part | SCH-K16 |
| Thread | M16 |
| Material | Spring steel |
| Contents | 17×26.2×1.2mm |
| Material | Spring steel |
| Thread standard | M16 |
| MOQ | 1 |
Solid-bushing inserts are permanent and stronger than wire inserts. Use Heli-Coil/Recoil wire inserts for thread reinforcement in soft alloys.