The discription of these parts are terrible. The "pins" are the Barrel type plastic stub shown in the picture that go thru the glass not the pins to hold the parts together. The insert long and short are just a different style "pin" that goes thru the glass(if you have a cap on the out side of the glass you would need one of these), but be warned these inserts DO NOT fit the arm properly.The arm side is a little to big to fit in the insert. The oval arm(not pictured) uses a pressure fit to keep the window open instead of the notches. You do not get the ss roll pins to connect the parts together or any parts to attach the glass to the arm no matter what you order. I know this because I ordered everything to see what I needed. I'm happy with the purchase because this was the ONLY place I could find what I needed.