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

Well machined with a good finish and appropriate fit on the shaft.

Worked as intended. Good machining. I also drilled and tapped some smaller set screws with no issues.

It is a good shaft lock

duper goog

Inside diameter was too small to fit 1 steel tubing.

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

Some others complained that the ID was small. Mine was good and it fit on my 1 +/-.003 shaft nicely. Set screw worked as it should.

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.

Good fit