OTTFF 10 Set 1-3/8" Greenhouse Cross Grid Connector, Pipe Clamps for Chain Link Fence

Good product, great price, Amazing seller!

It fits 1-3/8 in. Galvanized Metal Top Rail. Good quality.

I used these connectors to construct shelving in my basement. I like the connectors because they are solid and keep the tubing for the shelves in place. The only drawback if there is one is that the connector is attached using four bolts and nuts. I would recommend a magnetic racket ad Phillips screwdriver to make the assembly go faster and cut down on dropping bolts or nuts.

We needed to protect our 20' LOA, 8' Beam Ply on Frame Boat we built in our backyard so we constructed a metal pipe quonset hut that measures 12' wide by 20' long by 6 1/2' high. Using the OTTFF Cross Grid Pipe Connector Clamps (for 1 3/8" diameter pipe) made the building of the hut an easier task. Working alone, the rail clamping took a few hours. After aligning the 5 arched to the topmost rail we covered the pipe frame with a heavy duty white canopy to protect the boat from the harsh Florida Sun and humid environment. We highly recommend the OTTFF Cross Grid Pipe Connector Clamps because they are a quality product, hold fast and can do the job.

Clamps are great, but the included nuts and bolts are trash. The bolts are M6x20 (not sure why the product info says M5) and they're too short. They need to be at least M6x30 with M6x40 the optimal length. No washers (either flat or locking) and the nuts are not nylon lock nuts. Really? If you're going to provide a standard nut, then throw in locking washers. But nylon lock nuts would be the best solution. Love the clamps; they will work perfectly. Not at all happy that I had to buy decent (additional) attaching hardware to adequately complete the project. 3 stars.

I use these for making perpendicular connections between regular fence pipe to EMT conduit or 1" PVC. I have not found anything else affordable that would do this. These seems to hold up fine. The screws kept coming apart so I went to the hardware store and spent another $10. Those are solid.

Added strenght to greenhouse

The nuts and bolts that came with this are way too small. The head itself is just slightly larger than the hole. If you need any structural integrity out of this you'll need to buy 1/4" bolts instead of the 3/16 junk that is included.