Header fastener image

Security Fasteners and General Fixings from Stock and to order

Click Now for a Quote

Call +44(0) 1902 457734

Twitter Icon Facebook Icon LinkedIn Icon Skype Icon

Phillips Flange Head Thread Forming Screw for Plastic

SKU: TFS09 Category:

FasPlas Phillips Flange thread forming screws are available in 30° thread angle that is suitable for fixing into soft materials such as plastic.

  • Phillips Drive
  • 30° thread angle, with 45° and 60° available to order only
  • Range of diameters and thread lengths for this self tapping screw for plastic.
  • Manufactured in steel zinc or zinc & black, with stainless steel also available.

Phillips Flange thread forming screws feature a 30° angled thread that allows the screw to create a neat fixing within plastic without any mess or wastage. The angle of the thread means that resistance and security is provided for the screw within the plastic.

The Phillips drive ensures that the screw driver doesn’t slip out of the recess whilst fixing to the desired material but shallow enough that the driver will pop out when the screw is tight enough to prevent over tightening and damage to the screw. The flange head acts as an integrated washer, allowing the screw to sit flat against the surface whilst distributing the both the torque and clamping force of the screw over a wider area.

This self tapping screw for plastic is available in a 30° thread angle only in a range of different sizes manufactured in zinc steel, black steel or stainless steel.

All stocked sizes are listed below. FasPlas Phillips Flange thread forming screws are available to order in non-standard sizes and finishes, including small volume manufacture, modifications and custom parts to drawings.

Please contact us with your requirements to further your enquiry.

30° Flank Angle
Diameter /
Length (mm)
2.2 2.5 3 3.5 4 5 6
5 marker-image marker-image
6 marker-image marker-image
8 marker-image marker-imagemarker-image marker-image marker-image
10 marker-image marker-imagemarker-image marker-imagemarker-image marker-imagemarker-image
12 marker-image marker-imagemarker-image marker-imagemarker-image marker-imagemarker-image marker-image
14 marker-imagemarker-image marker-imagemarker-image marker-imagemarker-image marker-image
16 marker-image marker-imagemarker-image marker-imagemarker-image marker-image marker-image
18 marker-image
20 marker-image marker-imagemarker-image marker-image
25 marker-image marker-image
30 marker-image
marker-image = Steel (Zinc or Black Zinc)
marker-image = Stainless Steel

Thread Forming Screws – Design Considerations

When specifying thread forming screws for plastics, these factors should be considered:

  • Hole size and design
  • Type, grade and thickness of plastic
  • Installation depth
  • Required application and strip out performance

Standard dimensions are as below, although additional sizes and custom made thread forming screws are available.
Phillips Flange Threadforming screw technical drawing

D Diameter 2.2 2.5 3 3.5 4 5 6
D1 – max 4.40 5.00 6.00 7.00 8.00 10.00 12.00
K 1.60 1.80 2.10 2.40 2.50 3.20 4.00
Recess 1 1 1 2 2 2 3

*For guidance purposes only