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Tooth Lock Washer
Material: Carbon Steel, Stainless Steel (SS304, SS316), Spring Steel
Types: Internal Teeth, External Teeth, Combination (Int+Ext)
Surface Finish: Zinc-plated, Black Oxide, Phosphated, Oiled, etc.
Shanghai Metal Corporation is a leading Tooth Lock Washer manufacturer and supplier.
Our Toothed Lock Washers are specially designed to prevent fastener loosening caused by shock, vibration, or dynamic loads. The toothed (serrated) edges bite into the surface of the fastened parts, creating extra friction and mechanical locking force.They are ideal for use in automotive, aerospace, electronics, machinery, and heavy equipment industries, where safety and reliability are crucial.
If you want to know more about our Tooth Lock Washer product price please feel free to contact us, we will reply you within 24 hours.
Packaging of Tooth Lock Washer
Q1.What information do you need for a custom quotation?
A: We need the specific standard (e.g., DIN, ASME), type (internal or external tooth), nominal size (e.g., M8, 5/16"), material, surface treatment (e.g., Zinc plated, Passivated), and target purchase quantity.
Q2.What is the MOQ and production lead time?
A: The Minimum Order Quantity (MOQ) for standard stock sizes is 10,000 pieces. For non-standard sizes or special finishes, the MOQ is typically 100 kg. Standard lead time is 15-20 working days.
Q3.Can you provide PPAP documentation for automotive applications?
A: Yes, we can provide Level 3 PPAP (Production Part Approval Process) documents, including dimensional reports, material certs, and control plans for automotive industry clients upon request.
Q4.What is the difference between internal and external tooth lock washers?
A: Internal tooth washers have teeth on the inside diameter to hide under the screw head for a clean appearance. External tooth washers have teeth on the outside, offering a larger radius and greater holding power against vibration.
Q5.Are these washers suitable for electrical grounding?
A: Yes. The twisted teeth are specifically designed to pierce through paint, rust, and surface oxides when tightened, creating a secure metal-to-metal connection ideal for electrical grounding paths
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