CM-1001-38's heavy-duty feature includes an extra wide border for the 1 1/2" wide strap opening. This metal suspender clip can accommodate for thick straps. It can be used to make tool belt or heavy-weight work wear suspenders.
No matter what sort of strap material you are using, whether it is nylon or elastic, polyester or plastic, you will be able to easily thread the material through the strap eye.