Detailed Product Description 52piece Clamping Kit -Includes:Coupling nuts,studs flange nuts,step blocks and step clamps for complete setup operations.-Sets contain the following:24studs:4piece each-3,4,5,6,7and8"long,4coupling nuts,6flange nuts,6 T-slot nuts,6 serrated end clamps,6 step blocks,1wall holder.MATRICGBUSM85/16-185/16-18M103/8-163/8-16M121/2-121/2-13M14M165/8-115/8-11