1. Jack nut for scaffolding can be used for the base. 2. The surface treatment ... is Hot-dip galvanized,painted Jack nut for scaffolding can be used for the base.Specification for the ... scaffolding base plate:1. Material: malleable steel2. Wall thickness: 3.5- ... is Hot-dip galvanized,painted,electro galvanized. Jack nut for scaffolding