ALEKO 2JL36A 3 1/2" Heavy Duty Gate Welding Hinge For Gates Fences Doors Easier Installation, Lot of 2 Perfect for heavy duty door hinges, ramp gates or anywhere you need a heavy duty hinge. Weld-On application. Heavy Duty. Used for swing door and so on. Easy installment, durable, high quality weld on hinges. Quantity: 2 Heavy Duty Hinges. Material: Steel. Length: 90 MM Diameter: 28 mm.