Preformed Line Products BG-2147 Big-Grip Dead-end. GALVANIZED STRAND. For use on: Extra High Strength, Siemens Martin High Strength, Utilities Grade. 3/8", Strand construction 3W / 7W, Actual Diameter .356/.360", Approx. Length 37", Orange, Rated Holding Strength (lbs) 15,400.(Percent of Strandes Rated Breaking Strength - 10