Threaded Plunger Syringes are for applications requiring extremely precise plunger movement or minute fluid manipulation. The Luer tip (LT) syringe terminations allow easy connection of Kel-F® hub needles; Kel-F hub PTFE tubing; and 1/4" O.D. x 1/8" I.D. Tygon® or rubber tubing. You can dispense from 0.33 to 37.79 µL per plunger revolution depending on the syringe volume.