There are two different common threads widely used on abrasive blast nozzles and blast nozzle holders. We generally called them Coarse Contractor Thread and Fine Standard Thread.
Building Construction Material Fine/Coarse Thread Drywall Screw
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HSP-9 Wet Shotcrete Machine for Construction
Metric Thread Chart (Complete)
Black Standard Bugle Head Fine Coarse Thread Plasterboard Gypsum
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Dustcheck's Conical v's Standard Parallel Filter Cartridge Technology
Coarse Contractor Thread & Fine Standard Thread
Screw thread - Wikipedia
Selecting a Coarse Vs. a Fine Fastener Thread
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Fastener Reference Guide (Metric-Imperial)