Climax Metal C-100 Shaft Collar, Zinc Plated Steel, Set Screw Style, One Piece, 1 Bore, 1-1/2 OD, 5/8 Wide, With 5/16-18 Set Screw

These things are the best standard barbell collars that I have ever come across. They keep the weight extremely tight to the bar. The only issue is that there is a great deal of variation in the the diameter of standard barbells…so check first before ordering.

using to be a stop point for a tool rest on my lathe. plenty of space but no slop. not a machinist fit but not that it is needed for the application.

Overall is best value for what you pay. It does the job holding the rear axle in place on my vintage quarter midget. I wouldnt install it for more for racing or something that needs more durability. But it gets the job done. Its also slightly bigger than the measurement than for the size I ordered.

I bought this to use as a replacement for a squirrel baffle. It is not suitable for that purpose. I do not know what its purpose is. Apparently, its good at what it is meant to be used for, but not for being a squirrel baffle. Baffled.

Good item for the price

Inexpensive solution to threaded dumbbell handles that will not stay tight.

Work great

exactly as advertised, excellent quality.

Picture shows a set screw and the ones I got did not have a set screw. I had to return and order a different part.

Put on my go kart axle 1 inch to align sprocket. worked great