SEOUL (Reuters) -Samsung Electronics has reached a preliminary agreement with its main workers' union in South Korea for a wage increase of 5.1%, it said on Thursday.

Union members will vote on the deal, which includes more holidays and bonus points that can be used to purchase Samsung Electronics products and other perks, for one week starting on Thursday, the company said.

The National Samsung Electronics Union also announced the preliminary deal on its YouTube channel.

The union, whose 36,500 members make up about 30% of Samsung Electronics' South Korean workforce, went on strike in July although the company said it did not lead to any disruption in production.

(Reporting by Jack Kim and Hyun Joo Jin;Editing by Christina Fincher)