First Niagara Bank says it loaned $8 million in working capital to Bridgeport-based Northeast Builders Supply & Home Centers (NBS) to help the company support its customers and reduce its cost of operations and product purchases. Terms of the loan agreement were not disclosed. NBS, which employs over 70 people throughout Connecticut, provides products and services to builders, developers, contractors, architects and designers, as well as homeowners throughout Connecticut, Westchester, Putnam and Duchess Counties in New York and parts of Western Massachusetts. The bank's parent, First Niagara Financial Group, acquired former New Haven-based NewAlliance Bancshares earlier this year.