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Japan, Nippon Chemical Screw
Nippon Chemical Screw PC/PB [Inner diameter-Outer diameter-free length(L)] PC/plastic spring
Made in Japan
Manufacturer : Nippon Chemical Screw
Model : PC/PB
Polycarbonate plastic spring.
| Continuous use temperature | 115°C/239°F |
| Combustion quality | UL94 V-2 standard color (transparent) product |
| UL94 V-2 equivalent white/black product |
| Inner diameter | 1 | 4 | 4 | 4 | 4 | 4.5 | 5 | 5 | 5 | 5 | |
| Outer diameter | 2 | 8 | 8 | 8 | 8 | 10 | 9 | 9 | 9 | 9 | |
| free length | 8 | 20 | 30 | 40 | 50 | 18 | 20 | 30 | 40 | 50 | |
| Close contact length | 5 | 12.5 | 18 | 24 | 30 | 11 | 12 | 18 | 24 | 30 | |
| spring constant | 0.28 | 1.14 | 0.558 | 0.443 | 0.34 | 2.45 | 0.601 | 0.498 | 0.361 | 0.296 | |
| ─ | ─ | ─ | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Inner diameter | 6 | 6 | 6 | 6 | 6 | 7.5 | 8 | 8 | 8 | 8 | 20.5 | |
| Outer diameter | 10 | 10 | 10 | 10 | 12 | 10 | 12 | 12 | 12 | 12 | 25 | |
| free length | 20 | 30 | 40 | 50 | 25 | 17.2 | 20 | 30 | 40 | 50 | 36 | |
| Close contact length | 11 | 18 | 24 | 31 | 14.5 | 6.5 | 12 | 18 | 24 | 30 | 16 | |
| spring constant | 0.43 | 0.742 | 0.561 | 0.56 | 2.34 | 0.038 | 0.33 | 0.259 | 0.23 | 0.7 | 0.1 | |
| ─ | ─ | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
- Spring constant (N/mm),
- Adhesion length, and spring constant are reference values.
- Durability and chemical resistance vary depending on usage conditions, so be sure to test under usage conditions.
- Constant of sprong (N/mm)
- Closed length and spring rate are reference values.
- Since durability and chemical resistance change based on usage conditions, please test under actual usage conditions beforehand.
Sales unit Quantity
Torsional rupture torque
| ─ |
Tensile rupture force
| ─ |
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- We use raw materials that are RoHS2 compliant.
- Black spots (sludge) may appear on the exterior.
- The remaining gate at the screw tip is less than 5% of the length (L).
Features
- The values in the table are reference values and are not guaranteed values.
- Please use a torque driver and torque wrench for tightening. The recommended tightening torque is 50% of the breaking torque value under use.
- Heat resistance and chemical resistance vary depending on usage conditions, so be sure to test under usage conditions beforehand.
- There may be slight discoloration depending on the lot and various conditions.
- Inventory sizes, shapes, and manufacturers of materials used are subject to change without notice.
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