For mating 3.81 mm pitch SC flanged Headers see stock number ; 739-3832 739-3832 for 180° and ; 739-3784 739-3784 for 90° typical. BCF Flanged Socket Connectors - 180° Push In. These Weidmuller BCF series of Flanged 180° plug socket connectors have a simple Push In system for conductor connection with an integrated push-button for opening the terminal point. The cable range for these BCF socket connectors is 0.14 - 1.5 mm² (24-16 AWG).