Product Description
LOCKWASHER
Frequently Asked Questions
Q: What is a lockwasher and what does SKU 3099990 do?
A: A lockwasher is a washer with teeth or a twisted design that prevents bolts and fasteners from loosening due to vibration or repeated use. SKU 3099990 is a lockwasher designed for manual pallet jack assemblies. It sits under bolt heads or between components to lock fasteners in place and maintain assembly integrity during equipment operation.
Q: Which manual pallet jack models use lockwasher 3099990?
A: SKU 3099990 is compatible with manual pallet jacks from Crown, Toyota, Raymond, Yale, and Hyster. It is used in wheel assemblies, load wheel kits, or structural components where vibration-resistant fastening is critical. Verify your pallet jack model and the specific fastener location before ordering.
Q: What are the specifications for lockwasher 3099990?
A: Lockwasher 3099990 specifications include bolt hole diameter (typically 3/8 inch, 1/2 inch, or 5/8 inch for pallet jacks), material (typically steel with zinc or nickel plating), and washer outer diameter. Contact us with your pallet jack model to confirm the exact bore size, outer diameter, and thickness for SKU 3099990.
Q: Why does lockwasher 3099990 prevent bolts from loosening?
A: Lockwashers have teeth, ridges, or a twisted design that bites into the bolt head and mounting surface. This creates friction and mechanical resistance that opposes bolt rotation. As equipment vibrates during use, the teeth keep the fastener seated, preventing the gradual loosening that occurs with smooth washers or no washer at all.
Q: How do I know if lockwasher 3099990 needs replacement?
A: Replace lockwasher 3099990 if bolts or fasteners repeatedly loosen despite tightening, if the washer shows visible damage or flattening, if teeth or ridges are worn smooth, or if the washer is corroded or discolored. Always replace lockwashers when re-assembling or replacing bearing assemblies or wheel components.
Q: Are there cross-reference part numbers for lockwasher 3099990?
A: SKU 3099990 may have equivalent OEM part numbers from Crown, Toyota, Raymond, Yale, and Hyster. Provide your pallet jack manufacturer, model, and the fastener location, and we can confirm the correct cross-reference and verify compatibility.