Grub screws & allen key. The rose plates are also antiqued to match the knobs and have three fixing holes for extra strength. (unlike others what are available which only have two). They have been antiqued by hand to give an aged appearance and they are not lacquered. This means that the brass will age naturally forming a nice radiance.The grub screws are steel which are located in the brass collar which ensures extra longevity. The spindle is threaded either end. This is known as "the pitts mortice system". Our door knobs are suitable for both mortice or rim locks. Projection from door - 70mm. Door knob diameter - 48mm. Rose plate diameter - 50mm.
Weight - approx 465g per pair. Approximately 1 lb of solid brass in each pair inc spindle. K mainland only, up to the scottish borders.Isle of white, scilly isles, the channel islands, northern and southern ireland.