Description
YSFR Precision Locknut. The YSFR type locknut is equipped with three flank fixing thread screws and three radial locking screws. This is especially suitable for customer’s requiring large shaft size locknut tightening with excellent locking torque.
- Material Composition: SCM440(42CrMo4)
- Hardness: HRC28° ~32°
- Thread Precision: ISO 4H
- Manufacturing Method: High Precision Turning
- Run Out: 0.008mm/p>

|
Thread |
D |
h |
d |
n x g/b |
t/c |
m |
m1 |
MAX Nm |
YSFR
M310x4 |
365 |
42 |
340 |
6×24 Ø22 |
12 |
338 |
M14 |
M14 |
100.0 |
YSFR
M320x4 |
375 |
350 |
348 |
YSFR
M330x4 |
385 |
360 |
358 |
YSFR
M340x4 |
395 |
370 |
368 |
YSFR
M350x4 |
405 |
380 |
378 |
YSFR
M360x4 |
415 |
44 |
388 |
6×26 Ø22 |
13 |
387 |
M16 |
M16 |
150.0 |
YSFR
M370x4 |
425 |
398 |
397 |
YSFR
M380x4 |
435 |
408 |
407 |
YSFR
M390x4 |
445 |
418 |
417 |
YSFR
M400x4 |
465 |
438 |
6×30 Ø22 |
435 |
YSFR
M410x4 |
475 |
46 |
444 |
15 |
443 |
YSFR
M420x4 |
485 |
454 |
452 |
YSFR
M430x4 |
495 |
464 |
462 |
YSFR
M440x4 |
505 |
474 |
472 |
YSFR
M450x4 |
515 |
484 |
482 |
|