Connector for flexible printed circuit board

A connector for flexible printed circuit board, comprising:

• an insulative housing having a rear section extending backwardly, the rear section having a rear space and a first peripheral wall around the rear space;
• a plurality of contacts retained in the insulative housing, each contact having a connecting leg extending into the rear space, each connecting leg having a connecting portion and a resisting portion connecting with each other, the connecting portion and the resisting portion of each connecting leg being located at different level surfaces;
• a fastener having a base, a mating section forwardly extending from the base and a board receiving chamber extending therethrough along a front to back direction, the mating section defining a contact receiving chamber communicating with the board receiving chamber along a top to bottom direction and a press section;
• a first sealing ring being arranged between the first peripheral wall and the mating section of the fastener;
• wherein the insulative housing has a fixed position to fix the fastener, and as moving the fastener to the fixed position, the press section presses against the resisting portion to drive the connecting portion projecting into the board receiving chamber, and the first sealing ring is sealed between the first peripheral wall and the mating section.