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

Set screw size is not correct. Please stop selling these with 5/16-18 in the description.

I have been using these in place of spring clips for a 1” barbell. I find them much easier to use with an extra Allen wrench on hand than the spring clips, and they remain very secure even at weights over 100 lbs.

works

1 inch steel collars with hex/ allen wrench screw. Fantastic collars. I originally bought four for two of my weight dumbbells. I just bought eight more for some of my other 1 inch weight dumbbells. Great quality. Tightened the screw with an allen wrench I had and it feels very tight. Perfect fit. Dont make the same mistake I did and buy those cheap plastic 1 inch collars. Instead by the solid steel 1 inch collars. The picture has an example of the cheap plastic ones that you dont want to buy. In the picture I also left the twist collar on too only because I had room but I would feel very comfortable just to put this collar on if I ran out of room on the bar.

Used for a shop made spinning drum to drag the lawn and make it level.

Used to try to make my flag less able to get wrapped up.

I keep thee around great for many uses around the shop.

Easy to install

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.

Very well made. Feels nice. Solid piece. Perfect inner diameter almost to a fault. It was so perfectly cut to 1 ID that it was sort of tight. Wasnt too much trouble though just had to slide hammer it in. Very secure hold once the hex is tightened down. Highly Recommend!