ITEM NAME:5pcs red 32mm diameter ball knob with M8 thread inserted for machine tool S9H1 5pcs red 32mm diameter ball knob with M8 thread inserted for machine tool S9H1 Ball button with threaded blind hole. Suitable for general use as operating and handling me diameter Can be used in many applications from lever knobs to door handles. Product Name: Ball Button Main material: plastic color: Red diameter : 32mm / 1.26 inch Thread diameter : 8mm / 0.3 inch Thread length: 16mm / 0,63 inch Weight: 114g Package content: 5 x ball button.Can be used in many applications from lever knobs to door handles. Ball button with threaded blind hole.