Double-acting single-end rod pneumatic compact cylinder with male rod thread (fine thread) - Bimba (Flat-1 series) - 1-1/16" bore (B1-1/16") - 4" stroke (S4") - Front threaded mounting holes (front end cap) - 5/16-24 UNF-2A (male) threaded rod - 2 x 1/8" NPT threaded pneumatic ports - Hard chrome-plated stainless steel 303 rod / Stainless steel 304 body / Buna-N seals