Approved Vendor

Spring/Wedge Lock Washer

Manufacturer part: 93281A109

When it's critical to keep bolted assemblies secure, choose these two-piece lock washers with the tightest grip of all. They stop nuts and screws from loosening in heavy machinery that experiences jarring starts and stops, such as compressors and compactors. Serrations on the outside bite into the fastener and mating surfaces, while wedges on the inside lock the two pieces together. When the nut or screw starts to loosen, the wedges drive more tightly together to maintain tension. You can reuse these washers up to fifteen times, as long as the serrations and wedges are not worn down. They are comparable to NORD-LOCK® or Sherex TEC® washers. Spring Lock Washer—More flexible than standard wedge lock washers to withstand stronger shocks and vibration. They have a cone shape that expands and compresses to maintain tension in the joint, similar to a heavy duty spring.Super-Corrosion-Resistant Zinc-Flake-Coated Steel—With 40 times the corrosion resistance of zinc-plated steel, these withstand rust as well as 316 stainless steel. They have been tested to extreme standards, including 1,000 hours of salt spray. They are similar to Magni-coated washers. Top-and-Bottom Serration—Adds friction for extra gripping power.

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Technical data

Specifications

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ID
0.670"
OD
1.000"
ECCN
EAR99
Finish
Zinc Flake Coated
Hardness
Rockwell C46
Material
Steel
Thickness
0.170" to 0.180"
Performance
Extreme Vibration Resistant, Reusable, Super Corrosion Resistant
Washer Type
Conical, Wedge
For Screw Size
5/8,", M16
RoHS Compliance
Not Compliant
DFARS Compliance
Specialty Metals Compliant (252.225-7009)
Lock Washer Type
Spring
REACH Compliance
REACH (EC 1907/2006) (06/27/2024, 241 SVHC) Compliant
USMCA Qualifying
No
Country of Origin
Sweden
Schedule B Number
731821.0000
Serration Location
Top and Bottom
System of Measurement
Inch, Metric

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