39-025 Awning Window Crank screw diameter is too big

Dear SWISCO Customer Service: I bought and received a 39-025 Awning Window Crank Operator replacement from SWISCO. At the end of 2-3/8 tongue on the crank operator, you provide a shoulder type screw. The shoulder screw diameter is too big and I cannot insert to the existing hole at the window. Do you have a type of Crank Operator without the screw and only a hole the end of the tongue. Or with small diameter shoulder screw (same size as on the other side of the 2-3/8 tongue). Thank you for your help.

Chung

I talk to Erika, she is very helpful and she wants me to send the pictures. Please see the pictures below for the end 2-3/8 tongue hole. Chung 

Dear Customer Service: Thank you reply, I don't need that shoulder screws. Because the shoulder diameter is too big to mount on window side. How can I take it out?

I bought the 33-206 nylon bushing together with the 39-025.

I just found you have a new model 39-061 Keller window crank with holes on it (no shoulder screw) that might serve my purpose. However, you do not show the full dimension on the picture, I wonder if it is the same 2-3/8" arm length ( you didn't show ). Do you provide rivet or bolt bushing to fit that hole. What size ? Thank you if you can do quick response. less than 4 days

Chung 

Dear Customer Service: I jut send you a text. and I found you text shows Right handed replacement crank operator shows a 2-3/8" arm extension with 1/4" - 20 thread, for awning windows manufactured by Keller, etc.

However, in the picture it shows the arm length is 2-1/4". which one is correct?

Chung