Actually they do need to be threaded. They screw into the black horn button. It has 3 female threaded inserts into which the nylon "screws" go in. You can see it in the first pic above. That's why one end of the nylon screw has a hex opening. To help screw it in.you can make the palstic sleeve doesnt have to be threaded
thats just bmw engineering gone overboard
get one from an old chevy truck
supplier there is every single part of the 53 trruck
available it is exactly the same
Thanks Markos. I need about 12 for different steering wheels I am refinishing.You can make the "screws" with nylon rod and a die. I plan to make new ones eventually. Do you need number three?
I've used mcMaster Carr when I need to build or replicate stuff. Great company!