Storm Protection：Our hurricane straps ensure steadfast support,Preventing extreme weather damage to buildings. Multi functional Connection: They provide versatile support for a wide range of projects.Suitable for connecting roof trusses, lumbers，wooden rafters and other wooden structures. Sturdy Carbon Steel:Made of high quality carbon steel and hot-dip galvanized,our joist hangers boast durability and resistance against bending, rust, and corrosion. Easy Installation:Just tie the rafters to the joists or rafters where they should be fixed, and then screw in the screws to complete the installation. Product Size:135x135x23mm. Thickness: 1.2mm.Screw hole:4mm.suitable for connecting 2x beams to roof rafters. 20 Pack