Macy’s workers in the Big Apple are threatening to strike this week amid a tiff with management over wages, hours and benefits.

More than 4,000 of the department-store giant’s employees in New York and Westchester are poised for a work stoppage as a five-year contract expires just before midnight tomorrow.

The union vote for a strike was “an expected part of the process during contract negotiations,” Macy’s spokeswoman Elina Kazan said, noting that “we have offered the union wage and benefits programs that will positively impact the lives of our associates, and will be among the best at department stores in New York City and across the country.”