In the unique situation where you require a 5/8" expansion anchor, for B Desk (see Sheet 13 of the OPM), order these BC45's and BC-90's. They come boxed for use with GRIDLOK with a total of 60 pieces, being 40 BC 45's and 20 BC-90's with the larger hole to accomodate these larger than normal expansion anchors. Note you must separately order GRIDLOK model required by ceiling manufacturer required for the installation ie. Armstrong, CertainTeed or USG. This product purchase is for clips only.  

For use as described in OSHPD OPM 0544.