LOCTITE® Tapered Dispense Tips are grey, 30-mm (1.18") long, multi-gauge conical dispense needles with a tapered head and Luer-Lock connection. The cone shape of the tapered dispensing tips helps reduce back-pressure, meaning higher flow rates and more consistent precision dispensing. They’re made of polyethylene (HDPE), which won’t scratch delicate surfaces. They contain light-blocking additives to protect UV-sensitive fluids, and their helical threads ensure secure attachment to valve and syringe barrels. LOCTITE Tapered Dispense Tips work with various adhesives of different viscosities and are available in the following gauge sizes: 14, 16, 18, 20 and 22.