The members of Unison, Unite and GMB are to take part in a 24-hour stoppage on 20 August. The action will affect environmental departments, housing, leisure, libraries and residential care.
Dougie Black, head of local government at Unison, said: "Members are angry that employers want to lock them into 2.5% pay increases for the next three years, while inflation is rising and set to continue."
The news comes a day after inflation was announced to have hit 4.4% - double the Government's target.
Black added: "We have a window of opportunity to avoid disruptive strikes. Lets hope the employers take it."
Scottish civil servants to strike over pay
Up to 100,000 local government staff in Scotland are to strike in protest of below-inflation pay rises.
