TE Connectivity TERMI-BLOK 3.81mm Right Angle Closed End Headers with Threaded FlangeTERMI-BLOK 3.81mm right angle mount closed end headers with threaded flange and polarization keying slots. These TERMI-BLOK 3.81mm closed end PCB header terminal block connectors are made from green polyamide 6.6 GFTE Connectivity TERMI-BLOK 3.81mm Two Part Terminal Blocks