SENTUO as the experienced Self Piercing Tap Connectors factory and supplier for 15years. SENTUO SLEP is an Self Piercing Tap Connectors for use with insulated aluminium or copper conductors. The fully insulated bolt provides safe live overhead line working.This connection further distributes a line in street lighting and domestic utility connections. Hexagonal shear-head bolt ensures precise tightening control of the Self Piercing Tap Connectors..