My snow thrower came with one spare shear bolt, which I needed a few years ago. When a second one busted, I was worried about finding a replacement. Some resort to substituting standard bolts and hardware, which will work, but jeopardizes both safety and protection of the equipment. These were a perfect fit for my Yard King branded snow thrower--and I suspect several other brands which share Murray parts. I ordered a couple of sets so I'd have more spares for the future and they arrived well before the next snow. I'm hesitant to say I "love" them, as a 5-star review indicates--they're just bolts and loving bolts is kinda weird--but they were exactly what I needed.