Pole Top Pins. Hot Dip Galvanized. Nylon alloy threads per E.E.I. specification TD-71. Pressed steel pins. Designed with flanged channel sections for mounting in the conven­tional manner with the flat side against the pole only. Use 5/8" mounting bolt. Lower hole slotted 11/16" x 1 1/4". 3 Hole Type. H: 9", Length In.: 18, S: 8", B: 3", Thread: 1", Std. Pkg.: 15