Stock and or Manuf. Part Num: Casters for Alera Wire Shelving Unit # 663776Diameter x width: 75 x 25 MM Load Capacity: 600 lbs PER CASTER Overall Height: 5 Inches from tip of screw to bottom of wheel Diameter of screw thread: Appears to be 5/16ths Length of screw thread: 1-1/4 inch (That's One and a quarter Inch.) Specification: Set of four (4) 3'' Swivel casters with screws, 2 Double Brake, 2 Non-Brake Side of Wheel states 75 X 25 which is the MM Specifications for the wheel itself. Wheel's Material and Color: Black - Non marking.
OKAY, now if your not familiar with these Casters, here is the deal. We bought a Bunch of Shelving Units from our Local SAMS CLUB. They all come with a set of 4 Casters, and 8 bolts with rubber feet. We use the bolts, we seldom use the rubber feet, and we rarely ever use the Casters. Now we have a TON of Brand New Casters sitting in a box.
We've looked up pricing, and found a lot of different things, mostly, buy in bulk 100+ and they sell for $5.70 each. So I figure a set of four, for $2.50 each, with no minimum is a steal. You'd pay way more than that anywhere else. I'm just trying to get rid of them and don't want to throw them away, and would like to recoup some of the cost of the shelves.
These Caster ship out in a box, and are HEAVY. So most of your cost is gonna be S&H. Sorry but I've priced them low enough you shouldn't have an issue with the S&H.