Made of 201 stainless steel, 320mm length, 11mm diameter.Welding mounting, Suit for metal door gate.(Not suit for wood door)Perfect use for double gate entry.Compared to interior latch, The bolt is more large, and high strength.Used for exterior door, such as backyard door, warehouse door etc.Specification:Product Name: Gate LatchPackage Content: 1 x Gate LatchMain Color: Silver ToneMaterial: 201 Stainless SteelWeight: 298gDimension: 320 x 40mm / 12.6-inch x 1.57-inch (L*W)Rod Dia.: 11mm / 0.43-inchMounting Method: Welding