Cross Arms CROSS ARMS Constructed of 11G Square Steel tubing 11G, 2” 3/8 Tenon. SCA mount over 2” 3/8, 3”, 3” 1/2 and 4” Outside Diameter and secured with 3/8 Set Screws. Aluminum Pole caps in both ends. Cross Arms Spec. Sheet Cross Arms Spec.Sheet Cross Arms_Brochure Cross Arms_Brochure Previous Next