An assortment of bar and clamping knobs from Hillman. These knobs are ideal for moderate-to-heavy torque applications. Included parts run 7/8" thru 2-1/2" in diameter and are constructed from quality materials which offer a high resistance to corrosion. Full assortments of #55239 contain seven (7) refills comprised Hillman item numbers #55240 - #55246.