AC Fans /DC Fans /Blowers /WireFanGuards /PlasticFanGuards /FanPowerCords /FanFilters Plastic Fan Guards Back Part Number: Qualtek 09250-G For use with fan size Mounting Hole Center (M/C) Mounting Hole Dia. 4 Places Width (W) 4 Places Thickness (t) mm in mm in in in in 60 2 1/2 50.0 1.97 .18 2.36 .250