The Tractor Boys signed Piotr Malarczyk and Tommy Oar on two-year deals last week and McCarthy had no intention of making any late moves on Tuesday’s deadline day.
“That’s it for us,” McCarthy told the club’s official website. “We have a strong squad, certainly the strongest we’ve had since I’ve been at the club.”
Henshall has not featured for the first-team this season.
“Alex is available for transfer,” McCarthy added. “He is not going to get in front of the other lads here and it’s time he moved on. I’ve told him that.”