@gunrunnerjohn posted:I just had a K-Line smoke unit apart, the screws in it were 4-40 screws. Lionel also used them in a lot of the TMCC smoke units. The body screws are like Rod says, 6-32.
Excellent. Would you happen to know how long for the smoke unit screws? Would 1/2 inch fit or should i get 1/4 inch?