OPTI-LOK LP Nut 1/4-28 for 1/16''OD Tubing, PTFE

OPTI-LOK LP Fittings are an excellent choice for making low-pressure connections into 1/4-28 ports. Connections to flat-bottomed ports can be made using OPTI-LOK flat-bottomed ferrules for 1/16” or 1/8” tubing without the need for pre-flanged tubing ends. OPTI-LOK LP Fittings are precision machined to deliver leak-free, zero-dead-volume connections every time. We also offer 1/4-28 unions in various through-hole sizes for joining flat-bottom fittings.