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Click on image for the lowdown. 
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| | | Forums66 Topics128,012 Posts1,055,320 Members48,419 | | Most Online14,466 Apr 26th, 2026 | | AD Chevy Trucks Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Jan 2015 Posts: 914 'Bolter | | 'Bolter Joined: Jan 2015 Posts: 914 | NPT and what is the other one?
The only thread difference I know is that some have a taper and some the threads are straight though the both of them have the same thread per inch.
So either one should fit but the straight thread one will not screw in as deep if the female hole was tapped NPT. Jeffrey | | |
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