Teamsters Local 25 members at Airgas in Hingham are on strike after voting down what they say is an unfair contract proposal.

McQuaid said details of the agreement would not be available until members have a chance to review them and vote. Shutterstock This story was originally published on Supermarketnews. Costco Wholesale and the Teamsters union have reached a tentative agreement on a new contract,

The looming threat of 18,000 Costco store employees heading to the picket lines appears less likely, with the Teamsters labor union announcing Saturday that it has reached a tentative agreement for a new contract with the grocery chain.

Costco and the Teamsters union came to a tentative contract agreement, averting a scheduled strike by its 18,000 union members in 56 stores.

U.S.-based membership-only retail chain Costco (COST) has dodged a nationwide strike after Teamsters agreed to a tentative deal. The

If the union had gone on strike, it would been the largest work stoppage at a U.S. retail chain in history, and the first for a big-box retailer.

A threatened strike at 56 Costco stores across six states has been averted for now, as the company and negotiators for the Teamsters union, representing 18,000 workers, reached an 11th hour tentative agreement,

Costco Wholesale and the Teamsters union have reached a tentative agreement on a new contract, averting a strike that could have disrupted operations. The

Teamsters said the Costco agreement will need to be approved by members. Costco and the Teamsters union have reached a tentative agreement on a new contract, avoiding a strike, the union said Saturday.

A tentative agreement between Costco and the Teamsters came just hours before workers were set to walk off the job.