Taptite Screws

TAPTITE screws have the TRILOBULAR™ shape, which reduces friction during thread forming process and provides resistance to vibrational loosening

Why use Taptite thread forming screws?

  • 1. Reduce in-place fastener costs and provide vibration resistant assemblies.
  • 2. Eliminate separate tapping operations and associated costs.
  • 3. Built-in resistance to vibrational loosening eliminates the need for lock washers, adhesives, plastic patches, etc.
  • 4. Stronger mating threads due to work hardening of the cold-formed thread for higher stripping resistance.

Recommended pilot hole sizes:

Duty
Class		 Light Medium- Light Medium-Heavy Full Strength Extended 
0.3 Ø of
material thickness		 0.5 Ø of
material thickness		 0.75 Ø of
material thickness		 1.0 Ø of
material thickness		 1.25 Ø of
material thickness
Thread
Percentage		 90% 85% 80% 75% 70%
Nominal size Material
Thickness		 Drill
Size		 Material
Thickness		 Drill
Size		 Material
Thickness		 Drill
Size		 Material
Thickness		 Drill
Size		 Material
Thickness		 Drill
Size
M4 x 0.7 0.8 – 1.4 3.60 1.4 – 2.4 3.60 2.4 – 3.3 3.70 3.3 – 4.4 3.70 4.4 – 5.5 3.70
M5 x 0.8 1.0 – 2.1 4.50 2.1 – 2.9 4.57 2.9 – 4.4 4.60 4.4 – 5.9 4.60 5.9 – 7.1 4.60
M6 x 1.0 1.2 – 2.4 5.40 2.4 – 3.6 5.41 3.6 – 4.9 5.50 4.6 – 6.9 5.50 6.9 – 8.1 5.60
M8 x 1.25 1.6 – 3.1 7.30 3.1 – 4.9 7.30 4.6 – 6.9 7.30 6.9 – 8.9 7.40 8.9 – 10.9 7.40
M10 x 1.5 1.9 – 3.9 9.10 3.9 – 5.9 9.20 5.9 – 8.3 9.20 8.3 – 10.9 9.30 10.9 – 12.9 9.30
M12 x 1.75 2.4 – 4.9 11.00 4.9 – 7.4 11.00 7.4 – 10.5 11.10 10.5 – 14.5 11.10 14.5 – 17.0 11.10

All dimensions are in millimeters

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