A team has finished a game with 18-0 singles and extra-base hits 30 times since 1897, most recently Detroit Tigers on 11 September 1992. That is about one every 14,766 team-games.
Box score for the most recent one ↗
17-7 17-8 17-9 17-10 17-11 17-12 18-0 18-1 18-2 18-3 18-4 18-5 18-6
The whole distribution — Singles and Extra-Base Hits · All 18 shapes