I used 1/4" X 4" sleeve anchors with washers for my project.
By Francis Stuart
It calls for a 10mm. But I used a 3/8. Worked fine.
By Gwendolyn Norris
Can’t answer that but want to advise that when a 4x4 was placed in the units three of my five units’ welds broke. Would not purchase again. Toja grid units are more expensive but I had no issues with them breaking apart.
By Steven Lewis
Not sure. I fastened my post into my wood deck with galvanized bolts and washers when I built a 10 x 14 roof
on the deck. My guess - use a concrete drill bit with the same width as the lantern shade fastener you see on the pin.
When you tap each pin down into the hole it should fit snugly. Then begin to tighten the bolt until it feel snog. Don't overtighten the pin bolt.
By Pete Broad
