There was little for the home fans to get excited about until the 51st minute, when United’s No 3 was found in space out wide.
Skarz’s playing time has been limited by the form of the far more attacking Marvin Johnson in recent weeks, but the specialist left back showed he could contribute in the final third.
He measured a deep cross which John Lundstram buried to level the scores.
Skarz said: “I had a bit of time to deliver it.
“I’m a bit different to Marv, who wants to take players on. I’m not going to do that, I’ll just try to put the ball in.
“It was a nice feeling and a great finish by Lunny.
“I thought when we got it back to 1-1 there was only going to be one winner.”
The game was decided in stoppage-time, when Phil Edwards claimed his fifth goal of the season.
United’s full backs have more than 900 career appearances between them and their experience is very useful in what is otherwise a youthful squad.
Skarz thinks Edwards’s influence off the field has been just as important as what he has done on it.
He said: “I saw his interview saying he was the grandad of the team and he’s right.
“He’s really consistent and is one of the professionals who the young lads can look up to in what he does every day.
“He looks after himself and they can only take notice of how he goes about his business.”