Made in Japan
Manufacturer : Nippon Chemical Screw
Model :PEEK/BT(Thread size-L)
Polyetheretherketone inch hex bolt.
Continuous use temperature | 260°C/500°F |
Combustion quality | UL94V-0 |

Thread size | 1/4-20 | 3/8-16 | 5/16-18 |
Thread Series | UNC | UNC | UNC |
B×H(inch) | 0.438×0.172 | 0.563×0.250 | 0.500×0.219 |
L(mm/inch) | 9.53(3/8) | 100 | ─ | ─ |
12.7(1/2) | 100 | 50 | 50 |
15.87(5/8) | 100 | 50 | 50 |
19.05(3/4) | 100 | 50 | 50 |
22.22(7/8) | 100 | 50 | 50 |
25.4(1) | 100 | 50 | 50 |
31.75(1-1/4) | 100 | 50 | 50 |
38.1(1-1/2) | 50 | 50 | 50 |
Sales unit Quantity
Torsional rupture torque
Unit/Unit | 1/4-20 | 5/16-18 | 03/8-16 |
N・m | 2.04 | 3.8 | 6.35 |
ft-lb | 1.505 | 2.803 | 4.684 |
Tensile rupture force
Unit/Unit | 1/4-20 | 5/16-18 | 3/8-16 |
N | 1742 | 2915 | 4424 |
lbF | 391.6 | 655.29 | 994.52 |
- 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).
- Please use in combination with a nut made of the same material as the thread pitch may shift during molding.
- If a nut is not used, the fit with the female thread should be 20 mm or less.
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.