Torque-controlled expansion anchor for installation of racking, hand rails, barriers, storage systems, machinery and numerous other applications. Heavy duty yellow passivated anchor bolt fixing with four-way expansion shield for secure fixing. Designed for fixing into masonry and concrete. Ideal for internal and external applications. Includes shield, stud and nut. Size guide: eg M8 - 15 x 70mm: (M8 = bolt size; 15mm = maximum material thickness the bolt will fasten; 70mm = length of fixing).