Standard Nut, Steel, Width 1 3/8 in, Depth 53/64 in, Thickness 3/8 in, Finish Galvanized, Thread Size 3/8 In.-16, Silver, Bolt Size 3/8 in, Conduit Type Strut Channel, Conduit Size 3/8 in, For Use With 1 5/8 in Strut Channels, Package Quantity 25