All steel hinges have double or triple laminations for greater strength. Allows for 270 degree opening. Supplied with non-removable pin for maximum security. (Removable pin also available). Available in 10 ga stainless steel. Bracket - 8 Ga. x 5" x 5" from center of pin Strap - 8 Ga. x 2 1/4" x 8", 12" or 16" and 19". Pin - 1/2 Dia. steel Finish - Zinc plated.