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Compass Marine How To | all galleries >> Welcome To >> Seacock & Thru-Hull Primer/Pre Information > Mis-Match Count
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Mis-Match Count

Mis-Match Count

In this close up you can really see why mismatching thread patterns is strongly advised against. There is a reason the ABYC (American Boat & Yacht Council) says the following:

From ABYC H-27: Threads used in seacock installations shall be compatible (eg. NPT to NPT, NPS to NPS).

Nikon D200
1/60s f/4.0 at 46.0mm iso100 full exif

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