broken threads on front windshield locking screws

Hello!

I am new to the forum after "coming into" a 58 352CID skyliner! it is in pieces right now and am focused on getting it started/running (started today) and getting the top assembled and operational.

I started rebuilding the front windshield transmissions today and for the most part things went ok (I am following the Utube videos from Nick Keilen). When I tried to drive out the bearing and screw from the transmission only the Screw came out!).

Anyway, now that things are cleaned up a bit I am noticing that the the first 1/4 to 1/2 turn of the threads on the locking screws is sheared off. Is this a problem and if so is there a source for new locking screws?

Thanks in advance!

Ken