KQ uni-fit one-touch fittings only require hand tightening to assemble and a snug of the wrench to attain a positive seal in 1/3 of the time of conventional fittings. The innovative design allows use of uni-fit one-touch fittings with NPT, NPTF, RC(PT), and G(PF) threads making the uni-fit design both versatile and time saving. KQ fittings give you identical heights when used in manifolds or other side by side applications enhancing the appearance of your equipment.&nbsp; KQ fittings are available to order in multiples of 10.<span style="COLOR: #ff0000">The current KQ series fitting has been discontinued. SMC has introduced an improved version of KQ2 series, and recommends that you utilize the new series for your product designs. </span></p><ul><li>The KQ series has been discontinued, please see the <font color="#ff0000"><em><strong>New KQ2 series</strong></em></font> </li><li>One-touch fittings, metric size </li><li>Connection thread: M, R(PT), Rc(PT) </li><li>Body color: black </li><li>Release button: blue </li><li>Tube material: nylon, soft nylon, polyurethane </li></ul><br><p></p>