... 574 8807 3962***************************************************** Most Common Bearing Bar Spacing: (19-W-4) 1-3/16" x 4"(19-W-2) 1-3/16" x ... , 80mm etcUS standard: 19-w-4, 15-w-4, 11-w-4, 19-w-2, 15-w-2 etc. 3Twisted Cross Bar Pitch38.1, 40,50 ... , spray coating 6flooring grating StylePlain / Smooth, Serrated /teeth, I bar, serrated I bar 7StandardUSA: ANSI/NAAMM(MBG531-88),UK: BS4592-1987, Australia ...