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

Thread size | #4-40 | #6-32 | #8-32 | #10-32 |
Thread Series | UNC | UNC | UNC | UNF |
D(inch) | 0.212 | 0.262 | 0.312 | 0.362 |
y(inch) | 0.039 | 0.048 | 0.054 | 0.06 |
L(mm/inch) | c(inch) | 0.024 | 0.03 | 0.036 | 0.042 |
6.35(1/4) | 100 | 100 | 100 | ─ |
7.93(5/16) | 100 | 100 | 100 | ─ |
9.52(3/8) | 100 | 100 | 100 | 100 |
12.7(1/2) | 100 | 100 | 100 | 100 |
15.87(5/8) | 100 | 100 | 100 | 100 |
19.05(3/4) | 100 | 100 | 100 | 100 |
22.22(7/8) | 100 | 100 | 100 | 100 |
25.4(1) | 100 | 100 | 100 | 100 |
Sales unit Quantity
Torsional rupture torque
Unit | 4-40 | 6-32 | 8-32 | 10-32 |
N・m | 0.19 | 0.33 | 0.61 | 0.95 |
ft-lb | 0.14 | 0.243 | 0.45 | 0.701 |
Tensile rupture force
Unit | 4-40 | 6-32 | 8-32 | 10-32 |
N | 306 | 459 | 746 | 1090 |
lbF | 68.79 | 103.18 | 167.7 | 245.03 |
- 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.