These are Heavy Duty Nylon HingesFEATURES: Nylon construction w/brass hinge pinINCLUDES: 15 hinges 15 hinge pins (cotter pins) 1.2mm diameter x 24mm longSPECS: 3/4"-wide 1-3/8"= total length of both parts put together.COMMENTS: Precision molded, inspected and assembled with locked in hinge pin. Easy to install. Hinges have six holes on each side for maximum holding power. Built to take heavy loads. tjt 040102 ir/kh JCT 02/05/05