Precision Machined Anodized Aluminum Flat Washer 14mm OD x 7mm ID x 4mm Thick
Our precision anodized aluminum flat washer is engineered for reliable load distribution, sealing, and spacing in diverse mechanical assemblies. Constructed from premium aluminum alloy, it features a 14mm outer diameter, 7mm inner diameter, 4mm thickness, and smooth small C-chamfers on both inner and outer edges to eliminate burrs and ensure safe, damage-free installation. The silver anodized surface delivers enhanced corrosion resistance, wear durability, and a clean, consistent finish while maintaining electrical conductivity.
Produced via high-precision stamping and CNC machining, this washer conforms to ISO 7089/GB/T 3103.3 standards with tight dimensional tolerances for perfect fit and stable performance.
| Material | High-quality Aluminum |
|---|---|
| Outer Diameter (OD) | 14mm |
| Inner Diameter (ID) | 7mm |
| Thickness | 4mm |
| Chamfer | Small C-chamfer on ID & OD |
| Surface Treatment | Anodized |
| Tolerance | ISO 286 IT10, OD/ID ±0.05mm, Thickness ±0.03mm |
| Surface Roughness | Ra ≤1.6μm |
| Hardness | HV 60–80 |
| Certification | RoHS, REACH Compliant |
- Automotive systems & mechanical equipment assembly
- Electronic & electrical appliance fastening
- Aerospace & precision instrument components
- Plumbing & fluid sealing connections
- Industrial machinery, robotics & automation equipment
- Furniture assembly & metal fabrication
- Marine & outdoor corrosion-resistant applications
- Custom dimensions (OD, ID, thickness) per drawing/sample
- Custom surface treatments: anodized
- Custom chamfer, countersink, and profile machining
- OEM logo, marking, and packaging design
- Batch production with flexible MOQ
- Custom material selection (1050, 5052, 6061 aluminum alloy)
- One-stop custom solution from design to delivery
- Solves loose fit & assembly failure from poor dimensional accuracy
- Eliminates rust & short service life with durable anodized finish
- Prevents part scratching with deburred C-chamfer edges
- Reduces equipment weight with lightweight aluminum material
- Avoids inconsistent quality with strict factory production control
- Meets unique specs with full custom & OEM manufacturing support
- Raw material incoming inspection for alloy composition & hardness
- In-process dimensional check via micrometer & optical measuring instrument
- 100% visual inspection for surface finish, chamfer integrity & defects
- Salt spray test to verify anodized corrosion resistance
- Final random sampling for fit, tolerance & packaging compliance
- Full inspection report available for bulk orders
- Conforms to ISO 9001 quality management system
- Q: Can you customize non-standard aluminum washer sizes?
- A: Yes, we provide custom OEM manufacturing based on your drawings, samples or dimension requirements.
- Q: What is the production tolerance of your aluminum washers?
- A: Our standard tolerance is ±0.03mm–±0.05mm, meeting ISO 7089 industrial standards.
- Q: What is the lead time for custom orders?
- A: Standard samples 3–7 days, mass production 7–15 days based on order quantity.
- Q: Is the anodized surface durable and corrosion-resistant?
- A: Yes, Type II anodizing offers excellent wear and corrosion resistance for long-term use.
- Q: Do you accept small-batch trial orders?
- A: Yes, we support flexible MOQ for trial and prototype orders.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.