The Jamaican winger has put pen to a two-year deal with the Steelmen and is excited about again playing under McCall and with a new bunch of teammates.
"I am delighted to be here and I have to thank the manager, Stuart McCall, for showing faith in me," Daley told the club's official website.
"It's like a big family here and I just can't wait to get started and get to know the fans.
"I played the best football of my career under the gaffer at Bradford and I am grateful to be linking up with him for a second time.
"I have been in for a few weeks now and the standard is very high and the players are very professional.
"The lads have been very good to me, I feel very comfortable at this club. My confidence is high at the minute.
"I've had a good summer with my country at the (CONCACAF) Gold Cup so I'll give it my all in training this week, try to impress the coaching staff, and hopefully I will be involved in the match this Saturday."