M3 M5 M10 M16 M18 M20 M30 Toothed Plate Washer | Wholesale
M3 – M30 Toothed Plate Washer | Wholesale from China’s Powerhouse
Eliminate loosening failures on critical assemblies — M3, M5, M10, M16, M18, M20, M30 plate spring washers with full traceability, ISO 9001 certification, and factory-direct pricing that cuts your fastener spend by 22–37%.
✅ 10+ years export expertise ✅ 30+ countries shipped ✅ OEM/ODM ready
📸 Handan Boen — 35,000㎡ manufacturing base
⚠️ The Real Cost of Fastener Failure
For procurement and engineering teams sourcing toothed washers in volume, the wrong choice hits your bottom line — hard.
Vibration Loosening
Without proper plate spring washer teeth, assemblies fail after 2,000–5,000 cycles. Field repairs cost 4–8× the original part.
Inconsistent Quality
Cheap m3 spring washer or m5 spring washer lots show 12–18% dimensional drift. Rejections stall your production line.
Hidden Logistics Costs
Split shipments, delayed customs, and minimum order mismatches add 15–25% to your total landed cost.
Compliance Gaps
Missing spring washer m16 or m10 spring washers certifications (ISO, RoHS, REACH) can block your export to EU/US markets.
✅ Boen solves every one of these pain points — with full traceability, certified quality, and consolidated shipping.
🔩 Engineered to Hold — Toothed Plate Washers That Perform
From m3 spring washer for precision electronics to m30 spring washer for heavy construction, our toothed washers deliver 320–450 N·m vibration resistance. Here’s why procurement teams trust Boen.
Factory-Direct Power
We control the entire process — from raw material (SAE 1070, 65Mn, 304/316 SS) to heat treatment and packaging. 30–40% cost savings vs. trading middlemen.
Precision in Every Lot
CNC grinding ensures tooth height uniformity within ±0.03 mm. M10 spring washers and m18 spring washer batches pass AQL 1.0 Level II sampling.
Global Compliance
Full certification suite: ISO 9001, CE, RoHS, REACH, UL for spring washer m16 and all sizes. We support your export documentation.
High-Speed Delivery
Stock program for m3 spring washer, m5 spring washer, m10 spring washers — 7–12 days express. Bulk orders 20–25 days via sea.
| Size | Inner Ø (mm) | Outer Ø (mm) | Thickness (mm) | Tooth Height | Material Grade | Load Capacity (kN) |
|---|---|---|---|---|---|---|
| M3 | 3.2 | 7.0 | 0.5 | 0.20 | 65Mn / 304 | 2.4 |
| M5 | 5.3 | 11.0 | 0.8 | 0.30 | 65Mn / 304 | 5.8 |
| M10 | 10.5 | 20.0 | 1.2 | 0.45 | 65Mn / 316 | 14.2 |
| M16 | 17.0 | 30.0 | 2.0 | 0.60 | SAE 1070 | 28.6 |
| M18 | 19.0 | 34.0 | 2.0 | 0.60 | SAE 1070 | 32.1 |
| M20 | 21.0 | 38.0 | 2.5 | 0.70 | SAE 1070 | 40.4 |
| M30 | 31.0 | 56.0 | 3.0 | 0.85 | SAE 1070 | 68.5 |
📌 Custom OD/ID, material, and surface treatment (zinc, dacromet, HDG) available for OEM orders. Minimum order quantity: 5,000 pcs per size.
🛠️ Where Our Toothed Washers Excel
🏆 Trusted by 300+ Industrial Buyers Worldwide
From German automotive tier-1 suppliers to American construction distributors — Boen delivers consistent quality.
+ 25 more industry leaders
✅ RoHS · REACH · HACCP
❓ Frequently Asked Questions
Q1: What is the difference between a toothed plate washer and a plain spring washer?
A toothed washer (also called a plate spring washer) has hardened teeth that bite into the bearing surface, providing superior vibration resistance compared to a standard split lock washer. Ideal for m10 spring washers and larger sizes where loosening is critical.
Q2: Can I get a free sample of m20 spring washer or m3 spring washer before bulk order?
Yes! We offer free samples (up to 10 pcs per size) for qualified buyers. Just pay shipping — or we cover it for orders above $500. Request your sample kit.
Q3: What materials and surface treatments do you offer for spring washer m16 and m18 spring washer?
Standard: 65Mn (spring steel), SAE 1070, 304/316 stainless steel. Surface: zinc plating, dacromet, black oxide, hot-dip galvanizing. OEM custom welcome.
Q4: What is your typical lead time for wholesale m5 spring washer and m30 spring washer?
Stock sizes (M3–M20): 7–12 days express. Bulk production (M30 and custom): 20–25 days after deposit. We consolidate to save your freight.
Q5: Do you provide m10 spring washers with ISO 9001 and CE certification?
Absolutely. Every batch of toothed washers is shipped with a Certificate of Conformance. ISO 9001:2015, CE, UL, RoHS available. Third-party inspection (SGS, TÜV) can be arranged.
Q6: What payment and shipping terms do you offer?
T/T (30% deposit, 70% before shipment), L/C, Western Union. Shipping: FOB Tianjin, CIF, DDP. We handle all export documentation, including IPPC wooden packaging.
Q7: Can you customize the tooth pattern or dimensions for plate spring washer?
Yes. Our engineering team can design custom tooth geometry, OD/ID, and thickness. Send us your drawing or sample for a free design review.
⭐ Real Feedback from Global Buyers
Procurement Manager, Bauer AG (Germany)
"We switched to Boen's m16 spring washer and m20 spring washer for our excavator line. Failure rate dropped from 2.1% to 0.08%. Their tooth bite is consistent. Lead times are spot on."
Supply Chain Director, Pinnacle Parts (USA)
"We needed m3 spring washer and m5 spring washer for our sensor assemblies. Boen provided PPAP Level 3 with full dimensional data. Zero defects in our first 50k order."
Operations Lead, Gulf Industrial (UAE)
"M30 spring washer for our pipeline supports — Boen delivered 22 tons in 18 days. DDP Dubai with all customs cleared. Best supplier switch we made."
CEO, Valli Components (Italy)
"We tested m10 spring washers from three Chinese suppliers. Boen’s tooth hardness (48–52 HRC) was the only one that met our spec. Now a regular partner."
✍️ Written by James Harrington — Senior Fastener Engineer & Export Advisor
With 18 years in industrial fastener design and supply chain optimization, James has consulted for 7 Fortune 500 companies on bolted joint reliability. He leads Boen’s technical export team, ensuring every toothed washer batch meets ASTM F436 and DIN 6797 standards.
💬 Real Conversations with Our Clients
🚀 Ready to Secure Your Fastener Supply?
Get factory-direct pricing, free samples, and a 24h quote. No minimum pressure — just quality that speaks.
📧 shuan@fastenboen.com | mary@fastenboen.com | grace@fastenboen.com
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