Page 45 - BlueFastening-Systems_Brochure_07192017

Thread profile and cross-section
ensure better values

Radius profile The TAPTITE 2000® thread profile is similar to the involute
shape of a gearwheel. Together with the triangular
(trilobularen™) cross-section geometry of the screw's shaft,
it greatly improves the mechanical properties of the screw
fastening:

Tapping torque halved Less forming effort is required during Joining metals
the thread tapping process and material
With the unique radius pro- displacement is lower. The material can
file and the triangular cross- flow more easily in the direction of the
section, the TAPTITE 2000®'s thread core. The material's grain direction
driving torque is up to 50% is maintained.
less than that of conven- During the strain hardening process, the
tional thread-tapping screws mechanical values of the material can be
compliant with DIN 267-part increased by around 30%.
30 and DIN 75000-1. chipless thread-forming (no chips are
formed as is the case with tapping screws)
Profile of conventional lower driving torque
thread-rolling screws lower clamping force scatter
higher pre-load forces
Radius profile of TAPTITE 2000® greater vibration resistance

The optimised thread geometry of TAPTITE 2000® SPA™ Thread cut

Tapping zone length (LF) respectively 2.5 - 3.5 x p (pitch) By optimising the length
of the tapping zone (LF)
and the permitted Cp-max.
dimension, hole location of
the screw can be improved
while increasing the number
of bearing thread turns.

Nominal thread Ø TAPTITE 2000® M2.5 M3 M3.5 M4 M5 M6 M8 M10
1.80 2.10 2.40 3.00
Tapping zone length LF [mm] 1.35 1.50 ±0.30 ±0.35 ±0.40 ±0.50 3.75 4.50
Tolerance LF [mm] 0.60 0.70 0.80 1.00
±0.225 ±0.25 3.52 4.02 5.02 6.03 ±0.625 ±0.75
3.42 3.92 4.91 5.90
Pitch p [mm] 0.45 0.50 3.46 3.93 4.92 5.91 1.25 1.50
3.35 3.83 4.81 5.78
Circumference C max. [mm] 2.52 3.02 3.00 3.40 4.31 5.12 8.03 10.03

min. [mm] 2.43 2.93 7.87 9.85

Distance D max. [mm] 2.46 2.97 7.87 9.84

min. [mm] 2.37 2.87 7.71 9.66

Cp max. [mm] 2.13 2.58 6.91 9.07

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