Cotter Keys - 30pcs High quality Corrosion Resistant 304 Stainless Cotter Pin Assortment Kit – 5 each of the 6 Most Common Sizes Used 6 most commonly used sizes – 5 each 1/16”X1”, 5 each 3/32”X1”, 5 each 3/32”X1-1/2”, 5 each 1/8”X1-1/4”, 5 each 1/8”X2”, 5 each 5/32”X2-1/2”. A total 30 pcs for all of your needs Cotter pin with a hair pin style design gives fast and secure hold for bolts and pins, specialty locks to ensure tight hold that will last long Used for Automotive, Mechanics, Car Garage, Workshop, Power Equipment, Cars, Trucks, Lawn Mower, Small Engine Repair, Boat Trailer Axle Wheels, Castle Nuts, And Other Fasteners.