Bolt & Nut, Kishu Fastener
Kishu Fastener Anti Loose Nut (V nut)
Products Made in Japan.
Manufacturer: Kishu Fastener
Features
- Easy to install: easy fastening work, installation errors can be avoided
- Prevent nuts from quickly coming off: Stable locking function. Quick coming off can be prevented even if axial force drops. In addition, it is effective even in the middle position of the bolt.
- All metal product: heat and cold resistance
- Can be reused
- Various sizes: from M4 to M16
| Nominal diameter (d) | Pitch (p) | Width across flats | Overall height | Screw height (approx.) | Total height | |
|---|---|---|---|---|---|---|
| Standard type | Small | |||||
| M 4 | 0.7 | 7 0 -0.2 | ― | 3.8 ± 0.3 | 3 | ― |
| M 5 | 0.8 | 8 0 -0.2 | ― | 4.6 ± 0.3 | 3.9 | ― |
| M 6 | 1.0 | 10 0 -0.2 | ― | 5.1 ± 0.3 | 4.2 | ― |
| M 8 | 1.25 | 13 0 -0.25 | 12 0 -0.2 | 7.3 ± 0.4 | 6.1 | 5 ± 0.4 |
| M 10 | 1.5 | 17 0 -0.25 | 14 0 -0.25 | 8.3 ± 0.4 | 7.1 | 6 ± 0.4 |
| 1.25 | ||||||
| M 12 | 1.75 | 19 0 -0.35 | 17 0 -0.35 | 10.5 ± 0.4 | 9 | ― |
| 1.25 | ||||||
| M 16 | 2.0 | 24 0 -0.35 | ― | 14.5 ± 0.5 | 13 | ― |
| 1.5 | ||||||
| M 20 | 2.5 | 30 0 -0.35 | ― | 17.5 ± 0.5 | 15.4 | ― |
| 1.5 | ||||||
| M 22 | 2.5 | 32 0 -0.4 | ― | 19.5 ± 0.6 | 17.2 | ― |
| M 24 | 3.0 | 36 0 -0.4 | ― | 21.5 ± 0.6 | 18.8 | ― |
NAS type vibration test
| Test condition | |
|---|---|
| Test size | M12-1.75 |
| Test nut / bolt material | SWCH10R |
| Tightening torque | 55.8N ・ m |
| Number of vibrations | 30,000 cycles |
| n number | 1 | 2 | 3 | Four | Five | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Number of vibrations | Return torque or dropout | Number of vibrations | Return torque or dropout | Number of vibrations | Return torque or dropout | Number of vibrations | Return torque or dropout | Number of vibrations | Return torque or dropout | ||
| product name | V nut | 30,000 cycles | 44N ・ m | 30,000 cycles | 42N ・ m | 30,000 cycles | 45N ・ m | 30,000 cycles | 46N ・ m | 30,000 cycles | 52N ・ m |
| Three locknut | 30,000 cycles | 46N ・ m | 30,000 cycles | 41.5N ・ m | 30,000 cycles | 42N ・ m | 30,000 cycles | 39N ・ m | 30,000 cycles | 46N ・ m | |
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