DIN 908 hexagon socket screw plug, G 1", Article number 90811. Property class / material: steel, surface finish zinc plated. Hexagon Socket Screw Plug manufactured to DIN 908 with ISO 228-1 parallel pipe thread (G) thread, coarse pitch. Standard parts to the same standard, property class, dimensions and surface finish are interchangeable between manufacturers; confirm the controlling standard revision, any class-society or application approval, and the mating thread before substitution. Applications: sealing of threaded ports in gearboxes, hydraulic and pneumatic equipment, engines and plant pipework.