Made in Japan
Manufacturer : Nippon Chemical Screw
Model :PEEK GF30/PH(Thread size-L)
Polyetheretherketone GF30(+) inch pan head machine screw.
Continuous use temperature | 260°C/500°F |
Combustion quality | UL94V-0 |

Property by material
General properties | Test method | Test condition | Value |
Density | ISO 1183 | 23°C 50%Rh | 1.5 g/cm³ |
Water absorption rate | ISO 62 | 0.40% |
tensile elasticity | ISO 527 | 11000MPa |
Tensile strength | 165MPa |
Tensile elongation | 2% |
Bending strength | 250MPa |
Bend elastic constant | 12.2Gpa |
Charpy impact strength (with notch) | ISO 179/1 eA | 9C kJ/m² |
(1.8MPa) Deflection under load temperature | ISO 75 ASTM D648 | DRY | 323°C 614°F |
UL94 Combustibleness (1.6mm) | IEC 60695 | | V-O |
Volume resistivity | IEC 60093 | | 1015 Ohm cm |
Permittivity (1MHz) | IEC 60250 | | 3.3 |
Dielectric tangent (1MHz) | IEC 60250 | | 0.004 |
Values in the table are for reference purpose only, and they are not guaranteed values.
Thread size | #2-56 | #4-40 | #6-32 | #8-32 | #10-32 | 1/4-20 |
Thread Series | UNC | UNC | UNC | UNC | UNF | UNC |
D×H(inch) | 0.167×0.058 | 0.219×0.080 | 0.270×0.097 | 0.322×0.115 | 0.373×0.133 | 0.492×0.175 |
L(mm/inch) | 4.76 (3/16) | 100 | ─ | ─ | ─ | ─ | ─ |
6.35(1/4) | 100 | 100 | 100 | 100 | ─ | ─ |
7.94(5/16) | 100 | 100 | 100 | 100 | ─ | ─ |
9.53(3/8) | 100 | 100 | 100 | 100 | 100 | 100 |
12.7(1/2) | ─ | 100 | 100 | 100 | 100 | 100 |
15.87(5/8) | ─ | 100 | 100 | 100 | 100 | 100 |
19.05(5/8) | ─ | 100 | 100 | 100 | 100 | 100 |
22.22(7/8) | ─ | 100 | 100 | 100 | 100 | 100 |
25.4(1″) | ─ | 100 | 100 | 100 | 100 | 100 |
Sales unit Quantity
Torsional rupture torque
Unit/Unit | 2-56 | 4-40 | 6n-32 | 8-32 | 10-32 | 1/4-20 |
N・m | 0.11 | 0.23 | 0.44 | 0.79 | 1.17 | 2.5 |
ft-lb | 0.081 | 0.17 | 0.325 | 0.583 | 0.863 | 1.844 |
Tensile rupture force
Unit/Unit | 2-56 | 4-40 | 6-32 | 8-32 | 10-32 | 1/4-20 |
N | 276 | 434 | 644 | 1017 | 1424 | 2160 |
lbF | 62.04 | 97.56 | 144.77 | 228.62 | 320.12 | 485.57 |
- 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.