DIN 1587 cap nut, M20, Article number 158720. Property class / material: steel class 6, surface finish plain. Cap Nut manufactured to DIN 1587 with ISO metric (M) thread, coarse pitch, fully threaded. Standard parts to the same standard, property class, dimensions and surface finish are interchangeable between manufacturers; confirm the controlling standard revision, any class-society or application approval, and the mating thread before substitution.
| Standard | DIN 1587 |
| Property class / grade | CL.6 |
| Class (detailed) | CL.6 |
| Thread type | M |
| Thread diameter | 20 mm |
| Pitch | 2.5 mm |
| Thread pitch class | Coarse |
| Thread direction | Right |
| Thread length | 26 mm |
| Threading | Fully Threaded |
| Key width (across flats) | 30 mm |
| Surface treatment | Plain (no plating) |
| Surface treatment code | PLAIN |
| Nut height | 34 mm |
| Length | 26 mm |
| Thread standard | ISO metric (M) |
| Article number | 158720 |
| Category | Nuts / Hexagon Domed Cap Nuts |
| Material | Steel class 6 |
| Primary standard | DIN 1587 |
| Standard size | M20 |
| Thread standard | ISO metric (M) |
| MOQ | 1 |