If he is afraid of hands, than use positive reinforcement (food) you need to teach him that hands are only used for good things. But never force him to do anything. Find out what he enjoys/loves and use it as a treat. Offer some to him from your hand from a distance and see if he will come over to you to get his treat. If he does, praise him verbally and give him the treat. Speak softly, and always move slowly. It will take time, and never force him to so anything that he isn't comfortable with. If you go at their pace, your bond will be stronger.
With Rio, she hated my hands. I took it personally, don't. After she started taking her favorite seed from me only then did I try and touch her. I started with her beak, praising verbally and treating her each time she let me touch her. It's been weeks and she finally trusts my hands. I had to clip her nails because they were getting so sharp and she was catching them on clothing and her bungee. I was so scared to do it because I didn't want to undo what I had accomplished. I couldn't wait until she was ready for the nail clip, I just had to do it. My husband gently toweled her and I did the clipping of her nails. She was pretty upset for about an hr and wouldn't take any treats from me, but she didn't hold it against me after that. Whew!