An assortment of threaded aluminum spacers from Hillman. Aluminum spacers are used to create space between two objects or surfaces in order to ensure proper placement. The corrosion-resistant aluminum construction is ideal for applications involving circuit boards, gears, panels, and doors. To install, these tapped spacers screw onto a threaded rod or stud. This assortment includes myriad tapped spacer sizes with screw threads running 6-32 thru 10-32. Full assortments of #58384 contain twelve (12) refills comprised of Hillman item numbers #58385 - #58396.