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When you're dealing with heavy vibration in industrial machinery or automotive assemblies, these external tooth washers basically dig into the mating surface and hold tight — it's what they do best.
We push out about 5 million pieces a month, so lead time is usually pretty short, and the MOQ sits at 1000 pieces which works for most buyers.
Most of the demand we see runs from M3 up to M16 for standard industrial use, and for common sizes we typically have stock ready, though anything above M20 might need a bit more notice.
You can choose from zinc plated, dacromet, or black finishing depending on your corrosion requirement (check your enviornment), and the carbon steel variant handles most applicaions better than reagent grade alternatives for this.
One thing buyers often don't ask about is that these washers work best against hardened surfaces — softer metals like aluminum can actually deform under the teeth, and I've seen that cause issues.
Sizes range from M1.6 to M30 with all teh common internaional standerds covered, but it's the external teeth design that really prevents loosening under loads, and we've got ISO and TUV certs backing up batch consistency.
Standard orders up to 1 million pcs usually ship within 15-20 working days. If you need faster delivery, just let us know and we can adjust the schedule.
Yes, you can mix carbon steel and stainless steel or different finishes like zinc and Dacromet in one order, as long as the total hits 1000 pcs. We'll handle the split.
Absolutely, we include a TUV material certificate with every production lot. Just specify it when you place the order, and we'll send it along.
For M6, the external teeth diameter is 12.5 mm with a ±0.3 mm tolerance, and the inner hole is 6.4 mm ±0.1 mm. We follow DIN 6797A strictly, so all sizes match the standard.
Yes, we can pack them in bulk cartons or customize packaging like plastic bags or boxes to fit your line. Just tell us your preference when ordering.
Went with this supplier for our latest industrial fastener order, and the experience was quite positive overall. The logistics were handled very efficiently; the shipment arrived ahead of the scheduled delivery date, which was a pleasant surprise and helped us keep our project timeline on track. All items were securely packaged, with no signs of damage or mishandling during transit. Regarding quality, the carbon steel washers, including the DIN6797A external teeth washers, appear to be manufactured to a high standard. They have a consistent finish and the teeth are precisely formed, which is crucial for the vibration resistance needed in our machinery assemblies. The material seems robust and suitable for demanding industrial applications. On the service front, communication was clear and professional from the initial inquiry through to the post-delivery follow-up. The sales team was responsive to questions and provided helpful documentation promptly. The ordering process was straightforward, and they accommodated our specific packaging requests without issue. While I cannot comment on long-term performance in the field yet, the initial inspection and the supplier’s overall execution in logistics, apparent quality, and customer service have been very satisfactory. This has certainly established them as a reliable source for our future fastener needs.
Outstanding experience from start to finish. The logistics were handled exceptionally well; the package arrived ahead of the estimated schedule and was securely packaged, showing clear attention to detail in shipping. Regarding quality, the washers appear to be manufactured to a high standard, with precise external teeth and a robust finish that inspires confidence for industrial use. The service provided by the supplier was equally impressive; communication was prompt, professional, and helpful throughout the ordering process. Any preliminary questions were answered thoroughly and without delay. Overall, this transaction was seamless and highly satisfactory, reflecting a supplier that prioritizes reliability and customer care in every aspect of their operation.
Hats off to the exceptional logistics team for ensuring my order arrived ahead of schedule, which was a pleasant surprise given the current global shipping challenges. The packaging was robust and secure, preventing any damage during transit. Regarding quality, the washers exhibit excellent craftsmanship with precise teeth alignment and a durable finish that meets industrial standards. The customer service was equally impressive; the support staff was knowledgeable and responsive, promptly addressing my inquiries with detailed follow-ups. Overall, a highly reliable supplier that excels in all aspects.
