Adel Clamps with 1/4 inch mounting hole

I've searched all the usual place, McMaster Carr and others but can't find anything. I need some small Adel Clamps with a 1/4" mounting hole to run some wires/cables along my oil sump on the O-540. I can drill the others out, but then the edge clearance is very poor.
Thanks,
Jerry Folkerts

https://tiewraps.com/products/loom-clamps-stainless-steel?_pos=3&_sid=9d3195a79&_ss=r We use these at my shop.