Installation manual
SimradES38-12
•InternalthreadscanbeproducedwithEmugetaps,coldformingtapsorthreadmills
•Largerthreadholediameters,i.e.increasedtoollifeforthreadingtools
•Largertolerancesforthreadholediameters
Drawingstandard
Wheneverself-lockingthreadsarerequired,thisisshownonthetechnicaldrawing.
Inthecaseoftappingthroughholes,thearrowattheendofthecenterlineillustrates
thescrew-indirectionofthebolt.
Figure19Drawingexamples,self-lockingthread
Thedrawingisnormallyprovidedwiththefollowingtext(orsimilar):
Note:Theself-lockthreadsmarkedwithSL*mustbemadeinaccordancewith
procedure842–202125.Drilldiametersforthreadsdifferfromstandard.Self-lock
tapscanbesuppliedbySimrad.
Tapsandgauges
Thepretensionlockingthreadself–lock(taps)frommanufacturerEmugemustbeused.
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