M20 Internal Tooth Lock Washer / A2 Stainless Steel / Passivated / ISO 3506-1 A2-70; ASME B18.21.1
$485.91
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Product Description
M20 Internal Tooth Lock Washer / A2 Stainless Steel / Passivated / ISO 3506-1 A2-70; ASME B18.21.1
Specifications
| Material | Stainless Steel |
|---|---|
| Finish | Passivated |
| Grade | 18-8 |
| Size | M20 |
| Inside Diameter | 20.2 mm |
| Outside Diameter | 33.6 mm |
| Thickness | 4 mm |
| Hardness | B70 - C32 |
| Tensile Strength | 70000 |
| Standard | ASME B18.21.1 |
| RoHS Compliance | RoHS Compliant |
| Measurement System | Metric |
RoHS CompliantStainless
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.
How corrosion-resistant is this stainless steel fastener?
Stainless steel fasteners resist rust and corrosion in most environments. For specific corrosion requirements, consult our engineering team or the appropriate ASTM specification.
Internal Tooth Lock Washer / A2 Stainless Steel / Passivated
Family: V73
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Technical Specifications
Thread Size
M20
Thread Type
Metric Coarse
Material
Stainless Steel
Grade
18-8
Thread Direction
Unthreaded
Country of Origin
Import
Outer Diameter
33.6 mm
Thickness
4 mm
Tensile Strength
70000
Hardness
B70 - C32
SKU
V73700-1000