Radio Active RMA4414 6" Boat Prop Shaft with M4 Thread

These steel shaft propeller shafts are supplied with a 4mm metric thread and with a brass bushed tube of 8mm diameter. Each end has a 4mm thread, nut and washer. To seal the shaft pack with vaseline or thick grease. The length quoted relates to the tube length, the shaft protrudes 1" from the tube