Cuplock scaffold leveling prop screw jack is consists with base plate, high strength thread rod and jack nut, to support and stabilize horizontal beam in slab construction. Our scaffold leveling prop screw jack is compatible with scaffold systems like ringlock scaffold system, cuplock scaffold system, kwikstage scaffold system, frame scaffold system, etc. Our jack bases are in compliance with EN74 standard, loading capacity is from 150KN to 200KN. Welcome to visit our official website : http://www.constructionformworkaccessories.com