QWORK Storage Rack Caster Wheels, 8 Pack 3" Heavy Duty 1000 lb. Max Total Capacity Storage Shelf Accessories, Fit for Boltless Self Locking Shelving Racks

Wish I had bought these before assembling the shelving units but so worth emptying then tipping shelving over to add as wheels add tremendous versatility to move the shelves even when full of stuff. High quality materials and well built. Included bolts are also excellent.

I added these caster wheels to my metal shelving so that I could move them for floor cleaning or chasing lizards out that wander into my garage. they are sturdy and look good. The design of the bracket made it easy to to mount securely to the leggs of the storage racks. These wheels allow me to easily move the racks around when needed and lock in place when stationary. They are well worth the price.

They work as described. Make sure you have the lowest shelf support set to the bottom (I tried to set up the shelf above, and my uprights bent when the caster got caught in a small crack while loaded). If I could go back, I would get different shelving, but if you are just trying to make the rivet style shelving mobile, these will get the job done.

The casters themselves are fine and roll smoothly, but the included hardware (bolts) are junk.

I modify them to fit on my racks in the garage and they work great, very easy to use

Don't use these. They roll well but they do not work unless your shelf is a full square post. Does not work on l channel shelves.

Solid, well built product. It needs 2 washers per bolt but only came with one each. Won't work with a washer just on 1 side. The self locking nuts are great.

Casters roll easy and are robust. Great value. We adapted them to put on steel shelving unit.