Seachoice Utility Hinges 3"x1-3/8" Black Pr 50-34141 by Seachoice $6.82 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Seachoice Utility Hinges Pair #50-34141 Size: 3" x 1-3/8". Fiberglass filled black nylon with stainless steel pin. Very sturdy and extremely light weight. # 8 Fasteners.