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Thread-Forming Screws
PT star-drive pan-head screws with a plastic-specific thread
Product Center · Direct Assembly
PT Torx Pan Head Flange Thread-Forming Screw for Plastic
PT star-drive pan-head screws with a plastic-specific thread for low driving torque.
Key specifications
- Installationelectric driver into a moulded hole
- Standardcompany standard (plastic thread form), GB/T 197 reference
- Typical substrateengineering plastic housings
- Key inspectionsdriving torque, pull-out, thread form
- Drive TypeTorx T
- Head TypePan Head
Product overviewOverview
Plastic screws differ from metal thread-formers: a narrower thread angle (30° is common), coarser pitch and a rounded crest let the polymer flow rather than be cut, which lowers the stress concentration that leads to cracking. Rounded thread roots serve the same purpose.
installed by electric driver into a moulded hole.
Key featuresFeatures
- Plastic-specific thread form lets polymer flow instead of being cut.
- Flange spreads bearing load and protects the boss face.
- Rounded thread roots reduce internal stress and cracking.
- Star drive resists cam-out on thin plastic heads.
Typical applicationsApplications
- Appliance housings and panels
- Electronic plastic enclosures
- Automotive interior parts
Selection notesSelection
Set hole size by polymer: brittle grades such as PS and PMMA need a larger hole, ductile ABS and PC tolerate a smaller one.
Frequently asked questionsFAQ
How do I specify the PT Torx Pan Head Flange Thread-Forming Screw for Plastic?
Set hole size by polymer: brittle grades such as PS and PMMA need a larger hole, ductile ABS and PC tolerate a smaller one. installed by electric driver into a moulded hole.
What matters during installation of the PT Torx Pan Head Flange Thread-Forming Screw for Plastic?
Drive it with an electric screwdriver into the moulded hole. Plastic-specific thread form lets polymer flow instead of being cut.
Specifications
| Drive Type | Torx T |
|---|---|
| Head Type | Pan Head |
| Standard | company standard (plastic thread form), GB/T 197 reference |
| Head style | pan head |
| Drive | star recess |
| Installation | electric driver into a moulded hole |
| Typical substrate | engineering plastic housings |
| Key inspections | driving torque, pull-out, thread form |
Manufacturing and inspection
Thread angle, pitch and crest radius checked optically.We recommend a pilot assembly at the actual torque and mating part before locking the process parameters for volume.
