An assortment of zinc-plated double split shaft collars from The Hillman Group. Double split shaft collars are easy to adjust with their set screws. They are easy to install without having to disassemble machinery or components. These collars create a tight fit with greater holding power around a shaft without the damage caused by set screws. Parts install by simply tightening the screws once placed around the shaft. Variants included in this assortment range from 1/8" to 1" in overall diameter. Full assortments of #59772 contain twelve (12) refills comprised of Hillman item numbers #59773 - #59784.