Unique Bargains 20mmx5mmx5mm 304 Stainless Steel Key Stock Keystock Round Ended 14pcs

Made of 304 stainless steel, provides good corrosion resistance.
Undersized tolerance key stock is slightly smaller than the listed size and provides a loose fit in a keyway.
Key stock is used to make a machinery part known as a machine key, which fits into a mating keyway to transmit torque between shafts and hubs or bushings. Rectangular and square key stock shapes are the most common, while step key stock is used for damaged or inconsistent keyways.