Square Keys Assortment (1/8" thru 1/2")Hillman Item #2155
An assortment of square keys from The Hillman Group. Square keys are small bars of any length with similar height & width. They are inserted between a shaft and a hub to prevent relative rotation. Variants included in this assortment range from 1/8" to 1/2" in diameter and from 1" to 2-1/4" in length. Full assortment contains sixteen (16) refills comprised of Hillman item numbers #2156 - #2171.