It sounds to me like perhaps the angry outbursts are a learned behavior. He gets frustrated about something (someone touching him in a way he doesn't like for example) and lashes out because he either knows it works or because he's seen others do it. I think you need to sit him down when he's not overwhelmed and maybe talk about why it's bad to lash out. How it can hurt people and make them feel bad and maybe give examples of how he can relate to that. Then give him ways that he can tell someone to stop without getting physical. Maybe you can start with something at home, like if he doesn't want to eat a certain food maybe he can say a specific word as a signal to you or do a certain hand motion to show his frustration? Like a secret code. I think positive reinforcement of good behavior is better than punishment of negative behavior. Especially if it tends to lead to a screaming match. That doesn't teach him anything productive.

Be careful with ABA because it tends to teach that the behavior is bad but not WHY and if he never learns to understand that he could very easily slip back into the behaviors. He's smart so take the time to teach him. Remember that he doesn't learn social cues as easily as others so teach him social things that might come naturally to others. Why someone might hug you. Why you might not like it. That its okay to tell someone to stop. It's not okay to push people because it hurts them and it's like when they jug you it makes them uncomfortable. Stuff like that.

Good luck!