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Simrad ES38B
26
• Economically efficient locking system, no additional
components are necessary
• Undiminished holding power even under dynamic stress
• Repeated loosening and re-tightening without loss of function
• Internal threads can be produced with
forming taps or thread mills
• Larger thread hole diameters, i.e. increased tool life for
threading tools
• Larger tolerances for thread hole diameters
Drawing standard
Whenever self-locking threads are required, this is shown on
the technical drawing. In the case of tapping through holes,
the arrow at the end of the center line illustrates the screw-in
direction of the bolt.
Figure 11 Drawing examples, self-locking thread
The drawing is normally provided with the following text (or
similar):
Note: The self-lock threads marked with SL* must be made in
accordance with procedure 842–202125. Drill diameters for
threads differ from standard. Self-lock taps can be supplied by
Simrad.
Taps and gauges
The pretension locking thread self–lock (taps) from manufacturer
must be used.
Emuge
taps, cold
Emuge
338462/B
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