Review on Efficient and Versatile: Hillman Group 370039 8X2 Inch 50 Pack for All Your Needs by Mark Hart

I'm a fan of cavity wall wrenches, so I ordered them to hang some wire shelves in my AirBNB. Unfortunately, about 50% of them were defective. Either the bolt threads are too small or the wing threads are too large. However, the defective slipped and did not hold as intended. I ended up having to test each pair first, but I finally gave up and bought a box from Home Depot. Don't buy this.