Windsor auto parts suppliers HBPO and Dakkota hit the picket line

Two auto parts suppliers to the Windsor Assembly Plant are on strike.

A tentative agreement was reached Saturday with Avancez Assembly however Unifor Local 444 confirm they were not able to reach a deal with HBPO Canada Inc. and Dakkota Integrated Systems.

Unifor Local 444 vice-president Mike D' Agnolo saidbargaining for ZF TRW Automotive in Windsor is underway with a strike deadline set for midnight Sunday.

He saidthe four companies work through a pattern bargaining process adding "we set a deal with Avancez. So our expectationnow is that ZF, HBPO and Dakkota meet the pattern."

If a deal isn't reached, D'Agnolosaid thousands could be impacted at the Windsor Assembly Plant.

"In just our facilities almost 400 but this strike can impact up to 7000," explained D'Agnolo.

In a statement officials with Fiat Chrysler Automobiles (FCA) said that "we are monitoring the progress of talks between several modular suppliers and Unifor. We expect production at the Windsor Assembly Plant to resume as scheduled tonight at 11:36 PM," wrote LouAnn Gosselin, FCA head of communications.

D'Agnolosaidwages, benefits and in-house issues areitems that are currently being negotiated.

"FCA could be impacted tomorrow but that's not our goal. Hopefully the companies get back with us and meet the pattern so we can get all our people back to work," said D'Agnolo.