The PEM fasteners employ a unique float capability that enables easier mating-thread alignment during attachment and offer design flexibility for relaxed tolerance applications. The family of floating fasteners includes captive panel screws (Types PF11MW and PF12MW) and self-clinching nuts (Types AS, AC, LAS, LAC, A4, and LA4). All install easily and permanently in thin sheets. Floating captive panel screws (Type PF11MW with knurled cap and Type PF12MW with smooth cap) install into metal or non-metal panels as thick as 1.6 mm. Patented MAThread anti-cross threading technology corrects off-angle installations, aligns components, and slides through clogged internal threads. Thread sizes range from #4-40 through ¼-20 and M3 through M6 and available options include a scratch-proof DuraBlack finish. Assorted colored plastic caps are also available. PENNENGINEERING, Danboro, PA. (800) 237-4736.