Does any one know the size for the 4 little nuts needed to mount the 99 spec bumper lights. Mine came without mounting hardware. Thank guys in adv

anced

 

Its either an m4 or m5. Don't remember which but it's one of those. Take it to ace hardware and see what fits

 

the Mazda part number is 9994-00-503

since the part number starts with a 9, the size is in the part number
9 = Hardware
99940 = Nut with an Integrated washer with a flat bottom (not serrated)
05 = Mazda uses JIS spec fasteners, so an M5 is a 0.8 thread with an 8mm hex (Edit maybe Mazda uses 10mm?)
03 = in a nut its the washer style, 03 is a flat bottom.
and there is no letter, so its Gold Zinc plated, a B is Black Zinc, C is chrome, etc