Pneumatic-release / spring-clamping cartridge with piston rod at one end - Festo (KP series) - part number #178456 - 12mm bore (B12mm) - 600N static holding force - M5 threaded pneumatic port - Anodized Aluminium housing / Nitrile rubber (NBR) / thermoplastic polyurethane (TPE-U(PU)) static seals - Rated for <10bar - for static application - equivalent to KP12600