Ok, I know I ask a lot of questions but I AM trying to learn.

On the UL, i got 6 3MM ball links that look like the 1st picture. They are perfect for fitting between the dual control horns (2 Ail, 2 Ele).

they seem weird for using on the servo arm, which is what they have for the servo end of the flap and aileron. (second picture)

I have only used 4-40 in the past. Do all 3MM ball links have these weird little metal spacers sticking out and used on the servo end?

thanks in advance, and NO LAUGHING!! please

joe