BUCKINGHAM 30R-F3 Bolt hole diameter-13/16". (REPLACED THE 30-F3)
A flange that features a new, lighter, more compact design. Anchor attachment hole diameter has also been increased from 1 1/4 INCH to 2 INCH for easier connection of fall arrest/restraint devices. The 30R-F3 has a bolt hole diameter of 13/16 INCH.