Metric Female Knobs Assortment (Fluted, 4-Prong, and Ball)Hillman Item #55438
An assortment of fluted, 4-prong, and ball knobs from Hillman which are made specifically with and for metric-sized female screw thread. These knobs are ideal as replacement pieces for myriad maintenance applications. Knobs fit M6 and M8 screw sizes. Parts measure 1.25" Thru 1.75" in diameter and are constructed from high-quality, corrosion-resistant materials. Full assortment contains six (6) refills comprised of Hillman item numbers #55439 - #55444.