The hooker powered over twice from the back of the maul to underline the visiting pack’s dominance – the double sandwiched by an Onasanya reply, who bounced off two tackles to score with Tom Curtis adding the extras.
However, Sale gifted their opponents another try with half-time approaching as Joe Bedlow’s pass towards Alex Wills was snapped up by winger Griffin, who sped from inside his own half to dot down under the posts.
The Sharks struck back just after the turnaround, with Jibulu racing through on the left, but Bath quickly re-established control as Frost burst over once more to complete his try hat-trick.
It was one-way traffic for most of the final quarter as Green slid over for a second time and replacement flanker Timmins registered a swift double, either side of Spandler’s dart from the back of the maul with nine minutes left.
Will Muir set up Mason to take Bath’s tally of tries into double figures before Bradshaw pulled one back with the final move of the game.