A zinc plated m16 x 125 mm holding down bolt for bolting surface mounted posts to concrete and masonry surfaces.
Does not require resin grout/glue.
Simply drill a hole 80-125 mm depth using a 16 mm masonry drill bit.
Fit bolt to post and position bolt into hole.
Tighten bolt with a spanner, through bolt expands into drilled hole fixing post into position.