Locknut DIN 981 KM 4 thread M20x1 stainless steel 1.4301 (AISI304)
| Type | KM 4 |
|---|---|
| d1 [mm] | M20 x 1 |
| Ø d2 [mm] | 32 |
| Ø d3min. [mm] | 26 |
| B [mm] | 6 |
| b [mm] | 4 |
| t [mm] | 2 |
| x [mm] | 0,04 |
| Weight [g] | 19 |
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Material: Stainless steel 1.4301 (AISI 304).
These nuts are used for unsafed, quickly to loosen applications, or for a safe connection with an additional lockwasher DIN 5406 (for these lockwashers, a keyway is required on the shaft thread).
Recommend tolerance for the shaft thread: 6g DIN ISO 965.