1/2" 28 TPI or 1/2" 20 TPI either is okay, thread root diameter for 1/2" 28 should be slightly bigger leaving more meat between the bore and the thread root. DPT will tell you anyway.
1/2" 28 TPI or 1/2" 20 TPI either is okay, thread root diameter for 1/2" 28 should be slightly bigger leaving more meat between the bore and the thread root. DPT will tell you anyway.
Just going to take a look around the next bend...
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