Zoro Select
Zoro Select M37480.200.0001 Internal Tooth Lock Washer M20 50 pcs
Internal tooth lock washers with serrated teeth, zinc-plated spring steel, 21 mm inside diameter, 33 mm outside diameter, 1.40 mm thick, DIN 6798 J compliant, pack of 50
- TypeWashers
- SizeM20
- Serrated internal teeth resist loosening on M20 bolts
- Spring steel at 350-425 HV10 maintains clamping force
- Zinc plated finish protects against corrosion
- Meets DIN 6798 J standard for reliable performance
- Pack of 50 washers covers multiple fastening jobs
Product Identity
Zoro Select M37480.200.0001 internal tooth lock washers are supplied in a pack of 50 pieces for M20 screw sizes. Each washer has a 21.0 mm inside diameter, a 33.0 mm outside diameter and a 1.40 mm thickness. They are made from spring steel hardened to 350-425 HV10 with a zinc-plated finish and meet DIN 6798 J requirements.
Fit and Limits
These washers suit maintenance teams and assembly lines that need reliable locking on M20 fasteners in general-purpose applications. Buyers who require a different screw size, a non-serrated design or a material other than zinc-plated spring steel should look at alternative listings.
Accessory Impact
The 50-piece quantity supports batch work and reduces reorder frequency for recurring M20 jobs. No additional hardware, lubricants or installation tools are included in the package.
Highlights
- Serrated internal teeth resist loosening on M20 bolts
- Spring steel at 350-425 HV10 maintains clamping force
- Zinc plated finish protects against corrosion
- Meets DIN 6798 J standard for reliable performance
- Pack of 50 washers covers multiple fastening jobs
Specifications
| Brand | ZORO SELECT |
|---|---|
| Type | Washers |
| Size | M20 |
Questions about this item
What bolt size do these M20 washers fit?
They fit bolt sizes M20 with an inside diameter of 21.0 mm and an outside diameter of 33.0 mm.
Will the 1.40 mm thickness work with standard M20 nuts?
Yes, the 1.40 mm thickness is designed for general-purpose use with standard M20 fasteners.
How can I confirm the washers meet the DIN 6798 J standard?
The spring steel hardness of 350-425 HV10 and zinc-plated finish indicate compliance with DIN 6798 J.
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