Nozzle Holders

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Hollow Set Screw
5/16-24 hollow-lock socket set screw. This set screw is compatible with nozzle holder version..
Nozzle holder for Mk V hot-ends.   Note:  At times, black PEEK may not be readi..
PTFE Liner (Mk V)
This is the PTFE filament liner for a Mk V J-Head hot-end.    The 3mm line..