... .Certificate:CE,CCS,TUV,RoHS 3.Self-locking function 4.material:nylon66 J42-4 4mm2 universal terminal blockThe J42 sereis connection terminal is ... grounding type, and double layer terminalSpecs: 1.5mm2, 2.5mm2, 4mm2, 6mm2, 10mm2, 16mm2, 35mm2Features self-locking function to prevent bolts ... convenience while satisfying the comfortabaleness requirement for the wiring J42-4 4mm2 Universal terminal block