M20 Internal Tooth Lock Washers / Steel / Zinc CR+3 / DIN 6797A
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Product Description
M20 Internal Tooth Lock Washers / Steel / Zinc CR+3 / DIN 6797A
Specifications
| Material | Steel |
|---|---|
| Finish | Zinc |
| Size | M20 |
| Inside Diameter | 20.2 mm |
| Outside Diameter | 33.6 mm |
| Thickness | 4 mm |
| Hardness | C38 - C46 |
| Standard | ASME B18.21.1 |
| RoHS Compliance | RoHS Compliant |
| Measurement System | Metric |
RoHS Compliant
Frequently Asked Questions
Are lock washers effective at preventing loosening?
Modern engineering testing shows split lock washers can actually reduce clamp load under vibration. For critical applications, use nylon insert lock nuts or thread locker (Loctite). Tooth lock washers (internal/external star) typically perform better than split washers in vibration-prone applications.
External Tooth Lock Washer (DIN 6797A) / Steel / Zinc
Family: 741
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Technical Specifications
Thread Size
M20
Material
Steel
Thread Direction
Unthreaded
Outer Diameter
33.6 mm
Thickness
4 mm
Hardness
C38 - C46
SKU
741156-3000