ISO 7089-2000 Plain Washers Custom Special Treatment PVD DLC Coated Glod Titanium Nitride
ISO 7089-2000 Plain Washers Custom Special Treatment PVD DLC Coated Glod Titanium Nitride
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ISO 7089-2000 Plain Washers Custom Special Treatment PVD DLC Coated Glod Titanium Nitride
Table 1 — Preferred dimensions
Table 2 — Non-preferred dimensions
ISO 7089 Plain Washers – Technical Overview
Scope & Definition
ISO 7089 is an international standard specifying the dimensions, tolerances, and technical requirements for plain washers (flat washers) with a standard series of outer diameters and thicknesses. These washers are designed for general-purpose use with bolts, screws, and nuts to distribute load and protect surfaces.
Mechanical Properties
Hardness : 100–300 HV (Vickers) for steel washers.
Surface Treatment : Zinc plating (e.g., 5–8 µm) for corrosion resistance (per ISO 4042).
Applications
Industrial Machinery : Load distribution under bolt heads/nuts.
Automotive : Engine mounts, chassis assemblies.
Construction : Steel structures, scaffolding.
Electronics : Grounding, insulation (if non-metallic).
Core Competencies:
✅ Small CNC Machining – Producing miniature, complex parts (0.1mm–300mm) with tolerances down to ±0.005mm .
✅ Non-Standard Fasteners – Custom-designed screws, bolts, pins, and connectors for niche applications .
✅ Materials Expertise – Machining stainless steel, titanium, aluminum, plastics , and exotic alloys.
✅ End-to-End Solutions – From prototyping to high-volume production with strict ISO9001, IATF16949 compliance.
Key Industries Served:
Medical & Dental : Surgical tools, implantable devices, micro-fasteners.
Electronics : Micro-connectors, sensor housings, PCB mounts.
Aerospace & Defense : Lightweight brackets, drone components, specialty fasteners.
Automotive : Fuel injection parts, custom fasteners, EV components.
Why Choose Us?
✔ Precision-First Approach : Leveraging 3-axis 4-axis CNC, Swiss lathes, and EDM for intricate geometries.
✔ Agile Customization : Rapid turnaround for low-volume batches and one-off prototypes .
✔ Quality Assurance : Rigorous inspection (CMM, optical comparators) and traceability .
✔Global Supply Chain : Reliable logistics for JIT delivery and international clients.
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