Industrial Grade Screw Threads are used in relative low strength materials such as cast iron, aluminium, magnesium, brass, bronze and plastic, because the coarse threads provide more resistance to internal thread stripping than the fine or extra fine series. The Threads allow for good adjustment in cases such as slotted nut and cotter pin assembly. The Threads are used particularly for equipment and threaded parts which require adjustments, such as bearing retaining nuts, adjusting screws, etc. The Industrial Grade Screw Threads can be used for thin wall tubing and thin nuts.