Can holding down bolts (foundation bolts) be CE (UKCA) marked?

Currently, Holding Down Bolts doesn’t fall into Construction Product Regulation (CPR) standards and they cannot be CE (UKCA) Marked.

Holding Down Bolts are manufactured in accordance with BS 7419 (British Standard). This standard is not a harmonised standard like EN/ISO, that will allow them to be CE (UKCA) marked.

More about this you can read in  BCSA memorandum No 17-14 .

In the new edition of EN 15048:2016 (after standard will become harmonised), holding down bolts can be considered for CE (UKCA) marking after initial testing and suitability test in accordance 5.2. d) of EN 15048-2:2016.

Currently, EN 15048:2007 edition is the only harmonised standard that can be used for CE (UKCA) marking.

You can also monitor a list of harmonised standards here.