The connectors are used for jointing conductors of 1 kV cables. Because of the shear head bolt construction, no crimping tools are needed. The required torque of SLJ connectors is achieved by tightening the bolt until it breaks off. SJ0.47 has non-breaking screws. The connectors are water tight and suitable for solid and stranded, sector shaped and circular, conductors. The core insulation may be plastic or paper.