PT ALTERNATIVE SCREW
Fastener for plastic application
It is specially designed for thermoplastic material. The special screws solved problems such as plastic cracking, stress concentration, and unreliable connections caused by traditional screws.
The design includes two features and they are 30° thread angle and double core diamer. The goal was to minimize stress on the surrounding material while forming internal threads, thereby ensuring connection reliability and long-term stability.
This innovative design not only improved product quality but also reduced production costs by decreasing the need for metal inserts。
More technical introduction, please check:
PT Alternative Screw Product Analysis: Continuous Innovation of Plastic Fasteners
Pan Washer Head Phillips Drive
DETAIL DIMENSIONS REFER TO WN1411 ：
| M2 | M2.5 | M3 | M4 | M5 | M6 | |
| D/Thread Dia | 2.0-2.14 | 2.5-2.64 | 3.0-3.14 | 4.0-4.18 | 5.0-5.18 | 6-6.18 |
| DK/Head Dia | 3.7-4.0 | 4.7-5.0 | 5.7-6.0 | 7.64-8.0 | 9.64-10.0 | 11.57-12 |
| k/Head Height | 1.28-1.52 | 1.68-1.92 | 1.98-2.22 | 2.38-2.62 | 3.05-3.35 | 3.85-4.15 |
| h/Washer Thickness | 0.5-0.7 | 0.6-0.8 | 0.7-0.9 | 0.9-1.1 | 1.1-1.3 | 1.3-1.5 |
| P/Pitch | 0.89 | 1.12 | 1.34 | 1.79 | 2.24 | 2.69 |
| Recess/ PH | 1# | 1# | 1# | 2# | 2# | 3# |
MATERIAL: CARBON STEEL 10B21, ZINC PLATED+DEHYDROGENATION
MATERIAL: STAINLESS STEEL A2 (18-8), PASSIVATED
ROHS COMPLIANT
Above is a common type of screws for thermoplastic material. More information about screws used for plastic material please check:
FASTENER FOR PLASTIC – (shscrewtool.com)
Shanghai Screwtool is a long-standing OEM supplier who has served US and Europe fastener industry for over 20 years. If you have regular demands for screws or fasteners, we recommend that you can contact us directly (info@shscrewtool.com) for economic offer and complete service.
