Calvin Howarth was in top form for Glasgow

The visitors made a hash of a midfield move, allowing Bulloch to pluck the ball out of the air and claim an easy interception score.

Warlow rediscovered his range to claw back three points after the home back line strayed offside.

But Hayes repaired the damage immediately after the restart with another superb strike from 40 metres.

The Ravens suffered another blow two minutes later when hooker Gareth Williams was yellow-carded for an off-the-ball incident.

Glasgow stepped up the pressure and claimed a deserved third try as Gordon Simpson burrowed across under the crossbar.

New Scotland squad member Calvin Howarth then capped a great night's work by setting up Bulloch for the touchdown which ensured the bonus.

Hayes kept his 100% conversion record after substitute scrum-half Graeme Beveridge grabbed try number five.

Williams returned to the fray to claim a late consolation score for Bridgend.

Glasgow: Stuart Moffat, Jon Steel, Alan Bulloch, Tommy Hayes, Glenn Metcalfe, Calvin Howarth, Andy Nicol (captain), David Hilton, Gordon Bulloch, Lee Harrison, Nathan Ross, Andy Hall, Gordon Simpson, Andrew Wilson, Jon Petrie.
Replacements: Ben Daly, Andrew Kelly, Jason White, Rory McKay, Graeme Beveridge, Andy Henderson, Michael Bartlett.

Bridgend: Matt James; Craig Richards, Dafydd James, Gareth Thomas, Richard Mustoe; Craig Warlow, Huw Harries; Christian Loader, Gareth Williams, Chris Horsman, Deiniol Jones, Andy Moore, Richard Bryan, Jamie Ringer, Shawn Van Rensburg.
Replacements: Sililo Martens, John Funnell, Anthony Carter, Jon Thiel, Phil Booth, Owain Lloyd, Mike Powell.