DIN 7980 SPRING WASHER — M20: inside diameter 20.2–21.2 mm, outside diameter max 30.6 mm, pitch 2.50 mm. Material A2-70, surface Stainless Steel, tensile strength 700 MPa. Dimensional tolerances per DIN 7980.
WASHERS
| Inner Diameter (d1) | 20.2–21.2 mm |
| Outer Diameter (d2) | max 30.6 mm |
| Pitch | 2.50 mm |
| Weight per 1,000 pcs | 12.3 kg |
| Tensile Strength | 700 MPa |
| Material | A2-70 |
| Surface | Stainless Steel |
Weight is nominal, per 1,000 pieces, for the reference material on this page.
Dimensional tolerances per DIN 7980. Outer diameter is given as an upper limit only — the standard specifies no lower limit for d2.
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.
DIN 7980 Spring Lock Washer per DIN 7980 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.
20.2–21.2 mm (nominal with the tolerance range shown above)
max 30.6 mm (nominal with the tolerance range shown above)
2.50 mm
Material: A2-70, surface: Stainless Steel, tensile strength: 700 MPa.
DIN 7980.