Bury's winless streak was extended to 12 games after a goalless draw with Scunthorpe in a close-fought encounter.
Shaun Harrard's free kick struck a post and Efe Sodje's header clipped the crossbar as the hosts hit the woodwork twice inside a minute.
The Iron's Mark Duffy's saw red when he elbowed Patrick Cregg, but the Shakers could not take advantage.
In fact, Andy Barcham could have won it for the visitors, but his tame effort was easily saved by Trevor Carson.
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Bury manager Richie Barker told BBC Radio Manchester:
"It was frustrating. But when things aren't going so well you've got to dig in and accept that it's a point closer on the total.
"It would have been a lot better to arrest the slide with a win but it's a clean sheet and most importantly an improvement in attitude.
"We've been saying for a long time that it's small details, and those small things have been costly.
"We're still well aware of what it's going to take and where we need to get to, we're edging there, but we've got a bit to go."
Scunthorpe boss Alan Knill told BBC Radio Humberside:
"We're well drilled with 10 men now and I thought we were really comfortable, kept our shape and dropped ourselves in and made them go more direct than probably they wanted to.
"But again great effort. Unbeaten this month with 10 men again and fantastic effort from everybody and the whole squad today.
"You can call it what you like, lack of discipline I think some have been unlucky and some haven't, don't get me wrong, some have deserved it."