uxcell 6 Pcs Adjustable Pipe Bracket Clamp, 2"(50mm) Wall Ceiling Mount Split Ring Pipe Hanger Galvanized Iron Pipe Strap Support with Screw & Expansion Tube for Pipe Tube

I bought these to secure 6" spiral duct pipe to my walls for a dust collection system. The 6" clamps are oversized, leaving a significant gap between the pipe and the clamp even on the tightest setting. I expected them to be "adjustable" to fit nominal diameters (e.g., 6" bracket for 6" pipe). Simply, they are not snug enough against the pipe to be effective for this application. The female insert on the clamp has two thread sizes (but the clamps only come with one size wall anchor), so the actual threaded length of the clamp on the wall anchor is quite small. Finally, if you want to get the clamps close to the wall, you will need to cut the wall anchor down. All this should be described in the product description.

overall would give it 5 stars if the seller would include proper size hardware. the anchors have smaller diameter and useless in this case. so you need to go to the store and spend extra

Clamps were good but had to return due to incorrect size delivered. Ordered 2 inch and received 1.5 inch clamps.