Blackburn® Mechanical Connector, Type ADR-ALCUL Dual Rated, Aluminum/Stranded Copper Conductor, 14 to 2 AWG Conductor, 1/4 in Stud, 1 Bolt Holes, 11/16 in L x 1/2 in W x 7/64 in THK Tongue, Straight Tongue, 600 VAC, Specifications: 1-Conductor, Slotted Screw, 1/4 in Hole Spacing, Aluminum, Tin Coated, 1-5/32 in L x 1/2 in W x 9/16 in H Dimensions