3M™ QCI Shearbolt splice connector is ideal for connecting aluminum, copper and aluminum to copper conductors. Its aluminum construction offers high conductivity and an electro tin-plated finish resists corrosion. Tapered ends enable smooth splice body transition from the connector to the cable. For applications up to 69 kV and withstands temperatures of 221 deg F. 3M™ QCI shear bolt splice connector is a mechanical screw connector with stepless shear bolts. The stepless shear bolt shears at the same location regardless of AWG or metric conductor and comes with a centering ring for smaller conductors. In addition to the stepless shear, the bolt employs a contact disk end which avoids damage to the conductor strands while providing increased contact force. The connector is compatible for use with 3M™ cold shrink QS III and QS4 medium voltage splices. Its built-in center stop allows for correct positioning.