HOWDIA 1.2 mm Coarse Thread Connectors for 25.4mm/ 1" Outside Diameters Wire Shelving Poles with 23.0 mm Hole, 1.2 mm Wall Thickness, 4-Pack

Works with 1" diameter Costco Trinity shelves. However, advise wearing protective gloves when assembling because there may be metal burrs still intact.

Used them for my metal racks I bought at Costco when I couldn’t find the connections. Cheaper than the replacement online and worked perfect!

These replacements fit the Trinity wire rack poles that are sold at Costco. Used to connect the upper and lower pole sections together.

Literally the only size I could find on Amazon. I have the standard black wire racks you find on here, in Home Depot, and Lowes. I didn't buy some weird racks with some weird sizes. Not paying for this. Rip off. Can't find any other size. Makes no sense.

I measured the inner diameter of where the 2 connectors need to meet, and the overall diameter of the pole (1 inch). Maybe I don't understand the conversion or how to measure, but these were too small at the threads. It was perfect at the point where to stopped the adapter from sliding into the pipe, just not to thread them into place.Had to return them because of this.

Why did you pick this product vs others?:Perfect fitFit:Perfect

Item fit perfect and works well on the wire shelf but we actually didn’t end up needing them. Kept them since they were not expensive and at some point I might need them.

Worked