Jose Iglesias and Harrison Bader each hit two home runs in Mets’ win

After every Mets home run on days he doesn’t pitch, Severino grabs the “OMG” sign a fan gave Jose Iglesias earlier this year and passes it to the player who hit the home run, sometimes posing next to him for a photo. Sometimes, if Severino ventures into the locker room, he rushes back when he sees one of his teammates go over the fence.

“It makes everybody happy,” Severino said. “Even when you’re having a bad day, if somebody hits a home run and you put that sign out, it looks like we’re going to come back and win the game.”

Severino was particularly busy Friday night. The Mets hit a season-high five home runs in a 7-6 win over the Rockies at Citi Field, marking just the second time in the last three seasons they have accomplished that feat. Iglesias and Harrison Bader each hit two home runs from the bottom third of the lineup, while Mark Vientos added a solo shot.

Sean Manaea held the Rockies to three runs over seven innings, and the bullpen bent but didn’t crack as the Mets won their fourth straight game — a feat made easier given all the early support.

“This attack has been incredible for a few months now,” Manaea said.

These days, when the Mets score, they tend to do so convincingly and relentlessly. That was the case Friday, when, after the Rockies took a two-run lead off Manaea in the top of the second inning, Vientos and Iglesias hit back-to-back home runs in the bottom of the inning. Two batters later, Bader added a solo hit.

The Mets weren’t done, scoring another run on a Vientos double in the third, then another on a two-run home run by Bader in the fourth and a solo shot by Iglesias in the fifth. Their seven RBIs came from the last four batters in the lineup.

“They’re a very deep team,” said manager Carlos Mendoza, who received his first career ejection for arguing a third strike on Iglesias in the seventh inning. “That’s the challenge for pitchers. You’ve got to get through the first four or five innings, which are pretty good, but then you’ve got other guys behind them who are (just) as good.”

Iglesias, of course, has brought a steady vibe since his late May call-up, both with his bat — he’s hitting .347/.380/.560 in 28 games — and all the hype surrounding his hit song, “OMG.” Right at the height of the “OMG” mania that swept through Citi Field last month, a fan handed him a custom-made sign through an intermediary. The Mets immediately embraced it, using it as a prop in the dugout every time they hit a home run.

That sign has been widely used since then, as New York’s offensive renaissance hasn’t been limited to Iglesias. There’s also Bader, whose early-season reputation as the team’s best hitter has turned into a power play as the weather has warmed up. (Six of Bader’s eight home runs have come in the last six weeks.) There’s Francisco Lindor and Brandon Nimmo, both of whom caught fire as they moved to their respective positions — first and second — in the Mets’ batting order. There’s Vientos, who failed to find a spot on the roster for much of the early season but has since become a vital part of it. And so on, up and down the lineup.

Since May 31, the Mets have not only led the major leagues in runs scored, but they’ve done so by a wide margin, being the only team to average more than six runs per game. They’ve even increased their pace over the past month, scoring five or more runs in 18 of their last 24 games.

Iglesias was one of those who acknowledged the information sharing among hitters, which became a focal point for them after a players-only team meeting on May 29. Starting with Lindor, Nimmo and J.D. Martinez, that concept has trickled down to every member of the lineup — from longtime mainstays to newcomers like Vientos and Iglesias.

“It’s a very long season for a lot of reasons,” Bader said. “There’s going to be a lot of ups and downs. But this team has been very good at bouncing back and focusing on what’s going to make them successful. We’ve done a really good job of that and we’ve got a lot of games left to play and a lot of room to continue to prove that.”