Good for you, you asked a question, listened to the answers and followed through with success. Thumbs up for you.
Also, many people will put a VERY, VERY slight bend in the pin before inserting. That way, when it goes in, the "bend" will lock the pin in. Lots of folks also do this when replacing the rear sights on Rugers and other revolvers to help lock the pin(s) to keep them from falling out and losing the rear sight from recoil.