ISO 7089 FLAT WASHER — M30: inside diameter 30.77–31.39 mm, outside diameter 54.8–56 mm, thickness 3.7–4.9 mm, pitch 3.50 mm. Material A2-70, surface Stainless Steel, tensile strength 700 MPa. Dimensional tolerances per ISO 4759-3 — product grade A.
WASHERS
| Inner Diameter (d1) | 30.77–31.39 mm |
| Outer Diameter (d2) | 54.8–56 mm |
| Thickness (h) | 3.7–4.9 mm |
| Pitch | 3.50 mm |
| Tensile Strength | 700 MPa |
| Material | A2-70 |
| Surface | Stainless Steel |
Dimensional tolerances per ISO 4759-3 — product grade A.
Grade A2-70 · Stainless Steel
Grade A2-70 · Plain
Grade A4-70 · Stainless Steel
Grade A4-70 · Plain
Contact engineering team for verified B2 data reference.
ISO 7089 Flat Washer per ISO 7089 specification, available in A2-70 grade with Stainless Steel finish. Engineered for industrial OEM applications requiring 700.0 MPa tensile strength and reliable long-term fastening performance.
30.77–31.39 mm (nominal with the tolerance range shown above)
54.8–56 mm (nominal with the tolerance range shown above)
3.7–4.9 mm (nominal with the tolerance range shown above)
3.50 mm
Material: A2-70, surface: Stainless Steel, tensile strength: 700 MPa.
ISO 4759-3 — product grade A.