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

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.

This items rusts very quickly. Other than that, its a nice piece that works well.

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

Inside diameter was too small to fit 1 steel tubing.

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

This worked exactly for what I needed. The items arrived quickly and were 1/2 the price of a local tractor store. They didnt have it in stock at the store anyway.

Installs easily

Perfect for project

Perfect

These probably work great for 1 inch precision machined shafts, but they are too small for 1 inch round tube stock from Home Depot or Lowes.