In England they call a hardwareman an ironmonger.    From Wordnet, Princeton University. 

What grocer, hardwareman, druggist, or any other of the different tradesmen of the metropolis, ever wrought out of nothing the majestic structures or the enormous traffic which is represented by some of our dry goods concerns.    From Wordnik.com.  [The Continental Monthly , Vol. 2 No. 5, November 1862 Devoted to Literature and National Policy] Reference

In that year Matthew Boulton, the son of a wealthy Birmingham hardwareman, purchased Soho, and erected on it a mansion, with pleasure grounds, and a series of workshops, for carrying on the then staple trades of the town, in shoe buckles, buttons, and other articles included in the general title of.    From Wordnik.com.  [Rides on Railways] Reference

The hardwareman shook his head and said to Qwilleran, "He's a nuisance sometimes, but he spends a lot of money on tools, so I try not to offend him.    From Wordnik.com.  [The Cat Who Went Underground]

One morning appeared in Dublin "A letter to the shopkeepers, tradesmen, farmers, and common people of Ireland, concerning the brass halfpence coined by one William Wood, hardwareman, with a design to have them pass in this kingdom; wherein is shown the power of his patent, the value of his halfpence, and how far every person may be obliged to take the same in payments; and how to behave himself in case such an attempt should be made by Wood or any other person.".    From Wordnik.com.  [A History of the Four Georges, Volume I (of 4)] Reference