made of stainless steel features 3/4" through hole Item : universal angle adapterMaterial : stainless steelDescription : (1) angle adapter with two 3/4" holes for snap-in hangers , (1) set bolt , 3/8"X 1-3/4" , (1) slotted hex head bolt , 3/8"X 3/4" , (1) lock washer , (1) tapped insertPacking : 10pcs/kit , 10kits/carton universal angle adapter