PR(S) "STAINLESS STEEL" (302) HEAVY DUTY WELDING HINGE (3 X 3 X .120 GA)
Amazon.com: 4 Pcs Weldable Barrel Hinges 4⅛x1"(LxW) Heavy Duty Steel Weld On Bullet Gate Hinge 500 lbs Load Capacity for Metal Swing Door,Trailer Ramp Gate,Windows, ½" Dia Pin,Ball Bearing Detachable Hinges :
Stainless Steel Hidden Pivot Door Hardware | Pivot Hinge
Global Door Controls 3.5 in x 3.5 in Satin Nickel Full Mortise Spring Non-Removable Pin with 5/8 in Radius Hinge - Set of 2 CPS35355/8US15M - The Home Depot