(4-Pack) Zinc Plated Carbon Steel 5/8” Bore Shaft Collars Sets - Screw Style Bore Shaft Collars with 5/8” Bore Size, 1-1/8 Outer Diameter, and 1/2 Width - Suitable for Automotive and Industrial Use

Very well machined, inner diameter is 5/8 , comes with lock screw.

They do exactly what theyre supposed to do and were a good value.

Do not publish previoud review. found other possible causes. Purchased Collars. axel rod and wheels all from amazon. wheels fit axel but collars do not. keep you posted

Product is as expected. 2nd order was packaged as to contain small set screw if it became dislodged. Bravo!

Too big

Product went on easy. Will see if they stay in place.

Seems good quality

It was a struggle to fit this on a 5/8 shaft.

The ones I got were smaller than 5/8, by 1/32-1/16. Luckily I had a 5/8 drill bit and a drill press with a vise. I was able to bore them out so I could use them, but if youre not that lucky, beware, these are smaller than 5/8. I used a micrometer on the axle shaft i was using, and it came out exactly 5/8 and these would barely get on the ends. It took me 20 minutes to try and get the first one back off. The 5/8 drill bit shaved off quite a bit of metal to get them to work.

good so for, perfect use