WASHERS · Cross-reference compatibility analysis for material, finish & size combinations
Engineering Substitution Engine — Evaluate the feasibility of replacing DIN 127-A with an alternative standard.
Compatibility between sizes, material grades, and surface finishes under DIN 127-A.
| Size | Material / Grade | Surface Finish | Compatibility | Notes |
|---|---|---|---|---|
| M6 | A4-70 | Plain | ✅ Compatible | Standard combination |
| M6 | A2-70 | Plain | ✅ Compatible | Standard combination |
| M6 | A4-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M6 | A2-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M7 | A4-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M7 | A2-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M7 | A4-70 | Plain | ✅ Compatible | Standard combination |
| M7 | A2-70 | Plain | ✅ Compatible | Standard combination |
| M8 | A2-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M8 | A4-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M8 | A2-70 | Plain | ✅ Compatible | Standard combination |
| M8 | A4-70 | Plain | ✅ Compatible | Standard combination |
| M10 | A2-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M10 | A4-70 | Plain | ✅ Compatible | Standard combination |
| M10 | A2-70 | Plain | ✅ Compatible | Standard combination |
| M10 | A4-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M12 | A4-70 | Plain | ✅ Compatible | Standard combination |
| M12 | A2-70 | Plain | ✅ Compatible | Standard combination |
| M12 | A4-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M12 | A2-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M14 | A2-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M14 | A4-70 | Plain | ✅ Compatible | Standard combination |
| M14 | A2-70 | Plain | ✅ Compatible | Standard combination |
| M14 | A4-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M16 | A2-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M16 | A4-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M16 | A2-70 | Plain | ✅ Compatible | Standard combination |
| M16 | A4-70 | Plain | ✅ Compatible | Standard combination |
| M18 | A2-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M18 | A4-70 | Plain | ✅ Compatible | Standard combination |
| M18 | A2-70 | Plain | ✅ Compatible | Standard combination |
| M18 | A4-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M20 | A2-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M20 | A4-70 | Plain | ✅ Compatible | Standard combination |
| M20 | A2-70 | Plain | ✅ Compatible | Standard combination |
| M20 | A4-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M22 | A2-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M22 | A2-70 | Plain | ✅ Compatible | Standard combination |
| M22 | A4-70 | Plain | ✅ Compatible | Standard combination |
| M22 | A4-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M24 | A2-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M24 | A4-70 | Plain | ✅ Compatible | Standard combination |
| M24 | A2-70 | Plain | ✅ Compatible | Standard combination |
| M24 | A4-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M27 | A2-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M27 | A4-70 | Plain | ✅ Compatible | Standard combination |
| M27 | A2-70 | Plain | ✅ Compatible | Standard combination |
| M27 | A4-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M30 | A2-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M30 | A4-70 | Plain | ✅ Compatible | Standard combination |
| M30 | A2-70 | Plain | ✅ Compatible | Standard combination |
| M30 | A4-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M36 | A4-70 | Plain | ✅ Compatible | Standard combination |
| M36 | A2-70 | Plain | ✅ Compatible | Standard combination |
| M36 | A4-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M36 | A2-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M39 | A4-70 | Plain | ✅ Compatible | Standard combination |
| M39 | A2-70 | Plain | ✅ Compatible | Standard combination |
| M39 | A4-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M39 | A2-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M42 | A2-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M42 | A4-70 | Plain | ✅ Compatible | Standard combination |
| M42 | A2-70 | Plain | ✅ Compatible | Standard combination |
| M42 | A4-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M45 | A2-70 | Plain | ✅ Compatible | Standard combination |
| M45 | A4-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M45 | A2-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M45 | A4-70 | Plain | ✅ Compatible | Standard combination |
| M48 | A4-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M48 | A2-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M48 | A4-70 | Plain | ✅ Compatible | Standard combination |
| M48 | A2-70 | Plain | ✅ Compatible | Standard combination |
| M52 | A2-70 | Plain | ✅ Compatible | Standard combination |
| M52 | A4-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M52 | A2-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M52 | A4-70 | Plain | ✅ Compatible | Standard combination |
| M56 | A2-70 | Plain | ✅ Compatible | Standard combination |
| M56 | A4-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M56 | A2-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M56 | A4-70 | Plain | ✅ Compatible | Standard combination |
| M60 | A4-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M60 | A2-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M60 | A4-70 | Plain | ✅ Compatible | Standard combination |
| M60 | A2-70 | Plain | ✅ Compatible | Standard combination |
| M64 | A4-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M64 | A2-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M64 | A4-70 | Plain | ✅ Compatible | Standard combination |
| M64 | A2-70 | Plain | ✅ Compatible | Standard combination |
| M68 | A2-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M68 | A4-70 | Plain | ✅ Compatible | Standard combination |
| M68 | A2-70 | Plain | ✅ Compatible | Standard combination |
| M68 | A4-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M72 | A2-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M72 | A4-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M72 | A2-70 | Plain | ✅ Compatible | Standard combination |
| M72 | A4-70 | Plain | ✅ Compatible | Standard combination |
| M80 | A2-70 | Plain | ✅ Compatible | Standard combination |
| M80 | A4-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M80 | A2-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M80 | A4-70 | Plain | ✅ Compatible | Standard combination |
| M90 | A4-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M90 | A2-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M90 | A4-70 | Plain | ✅ Compatible | Standard combination |
| M90 | A2-70 | Plain | ✅ Compatible | Standard combination |
| M100 | A2-70 | Plain | ✅ Compatible | Standard combination |
| M100 | A4-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M100 | A2-70 | Stainless Steel | ⚠️ Conditional | Requires engineering verification |
| M100 | A4-70 | Plain | ✅ Compatible | Standard combination |
Contact our engineering team for verified compatibility data and custom rule sets.