Metric Coarse Castle Nut
Castle Nuts are generally forged but with larger diameters machining is the normal method of production.The difference between a slotted nut and a castle nut is that the castle nut has turret castle geometry on the top of the nut. The nut thicknesses are the same as a slotted nut.Like slotted nuts, castle nut applications are similar using pins to secure the nut into position after tightening. The pin is inserted through the slot and a hole through the fastener to secure the joint. Castle nuts are used when the locking pins are required to be flush with the diameter of the turret. This is useful for those applications where confined space is at a minimum and pin protrusion is unacceptable.Castle nuts are available heat-treated and non-heat treated, strength grades are marked on the nut for identification.