Preload-Controlled Inverted Cone Fitting, 1/4-28 UNF and M6 (CAT#: STEM-AL-2661-ZJF)

This preload-controlled inverted cone fitting is designed for connecting rigid tubing in fluid-handling systems. It is available in PP, PTFE, POM, PFA, and related material configurations. The fitting supports standard 1/4-28 UNF and M6 threaded interfaces. It accommodates rigid tubing with several outside diameters. A defined preload is applied before the connection is exposed to its working load. This preload improves connection tightness and reduces the possibility of gaps or relative movement between joined components. The controlled tightening principle supports consistent connection assembly during production. It also facilitates batch inspection and improves the efficiency of quality-control procedures.

Materials: PP, PTFE, POM, PFA, and related materials
Thread Specifications: 1/4-28 UNF and M6
Compatible Tubing Outside Diameters: 1.6, 2.0, 2.5, 3.0, and 3.2 mm
Compatible Tubing Type: Rigid tubing
Connection Type: Preload-controlled inverted cone fitting

Controlled preload application
Improved connection tightness
Reduced component movement
Supports consistent assembly
Suitable for batch production
Facilitates quality inspection
Improves inspection efficiency
Multiple material options