Yep, so if you use a new handle with an old door latch or window crank they don`t match well.
The set screw needs to fit in that groove on the shaft. If that happens it cannot come off.


~ BD.
"You won't find me in an old folks home" Pioneer Florida Cracker
1958 Apache Stepside
1958 Apache 1/2 ton Panel
1959 Apache 1/2 ton Panel