Approved Vendor

400 Series Stainless Steel External-Tooth Lock Washer

Manufacturer part: 98438A031

Grip tighter than split lock washers to prevent nuts and screws from loosening in applications with constant movement, such as conveyors. Tooth lock washers typically can't be reused because the teeth often get bent when tightened.External Tooth—Teeth on the outside edge bite into both the fastener and the mating surface for a stronger hold than internal-tooth lock washers. However, they may mar your material and snag on objects. Pair these washers with nuts and screws that are large enough to make contact with the teeth, such as pan, button, and binding head screws.Wear-Resistant 400 Series Stainless Steel—These grip hard material better than other types of stainless steel. They are not as corrosion resistant as 18-8 and 316 stainless steel, so they are best for environments that experience occasional moisture.

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Technical data

Specifications

Normalized product attributes for faster comparison and sourcing.

ID
0.384"
OD
0.694"
ECCN
EAR99
Hardness
Rockwell C34
Material
400 Series Stainless Steel
Thickness
0.032" to 0.040"
Performance
Corrosion Resistant, Wear Resistant
Washer Type
Tooth
For Screw Size
3/8,"
Tooth Location
External
RoHS Compliance
RoHS 3 (2015/863/EU) Compliant
DFARS Compliance
Not Specialty Metals Compliant
REACH Compliance
REACH (EC 1907/2006) (06/27/2024, 241 SVHC) Compliant
USMCA Qualifying
No
Country of Origin
Taiwan
Schedule B Number
731821.0000
Specifications Met
ASME B18.21.1
System of Measurement
Inch

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SupplierSupplier SKUPriceStockLead timeType
Approved Vendor98438A031$4.55 USDContact supplierContact supplierAuthorized · US distributor

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