Mechanical Connector, For Conductor Material Aluminum, Copper, For Stranded Copper Wire Size - Minimum 1 AWG, For Stranded Copper Wire Size - Maximum 250 kcmil, For Stud Size 1/4 in, Head Style Hex Socket, Number of Holes 1, Hole Diameter 0.34 in, Hole Spacing 0.88 in, Body Material Tin-Plated Aluminum, Maximum Temperature 221 Degrees F, Maximum Voltage 600 V, Number of Conductors 1, Number of Terminations 1, Tongue Width Not Applicable, Tongue Offset Height Not Applicable. This item has been restricted from sale in the following state (s): []