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Phillips Countersunk Head Thread Forming Screw for Plastic

SKU: TFS04 Category:

FasPlas thread forming screw for plastic, with a 30° flank thread angle and countersunk Phillips head, for installation into pre-drilled or moulded holes.

The flank angle results in lower radial expansion than is found in conventional screws and is designed to allow the maximum amount of plastic to be engaged – providing higher shear loads and resistance to pull out due to the increased bearing depth of the thread.

The ease of penetration through the material encourages plastic flow and reduces installation torque, therefore reducing the potential for thread stripping, risk of over-tightening and radial stress on the plastic.

Manufactured in steel or stainless steel, with a range of finishes also available for these self tapping screws for plastic.

Stocked in a number of lengths and diameters from M5 to M25, with non-standard sizes and made to drawing parts available.

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 prod-tri-blue-single
6 prod-tri-blue-single prod-tri-blue-single prod-tri-blue-black
8 prod-tri-blue-single prod-tri-blue-single prod-tri-blue-black-red prod-tri-red-single
10 prod-tri-blue-black-red prod-tri-blue-red prod-tri-blue-red
12 prod-tri-blue-red prod-tri-blue-red prod-tri-blue-red prod-tri-blue-single prod-tri-blue-single
14 prod-tri-blue-red prod-tri-blue-red prod-tri-blue-single
16 prod-tri-blue-single prod-tri-red-single prod-tri-blue-red prod-tri-blue-single prod-tri-blue-single
18 prod-tri-blue-single
20 prod-tri-blue-single prod-tri-blue-single
25 prod-tri-blue-single
Zinc finish= Zinc
prod-tri-black-inverted = Black Zinc
Stainless steel finish = Stainless Steel


D Diameter 2.2 2.5 3 3.5 4 5 6
D1 – max 3.80 4.70 5.50 7.30 8.40 9.30 11.30
K 1.30 1.75 2.05 2.80 3.25 3.40 3.80
Recess 1 1 1 2 2 2 2