They’ve got a pair of seemingly unbeatable goaltenders, a penalty-killing unit that’s so effective that taking penalties somehow seems to help, a deep roster that’s just now reaching full strength, and now the record for the longest season-opening point streak in NHL history.

That’s all well and good. But the Blackhawks are getting greedy. They want more.

‘‘There’s no looking back now,’’ said Viktor Stalberg, who had one of the goals in the Hawks’ 2-1 victory over the San Jose Sharks at the United Center on Friday night, their record 17th straight game with at least a point to start the season. ‘‘We want to keep winning. And if we keep playing the way we have been, we’re in a good spot to keep winning.’’

Brandon Saad’s shorthanded goal 2:24 into the third period — at the tail end of the Hawks’ third straight successful penalty kill — was the difference on the scoreboard. Saad filled in for the injured Dave Bolland (upper-body injury, day-to-day) on the PK and wound up beating Sharks goaltender Antti Niemi with a wicked shot from the left circle, hesitating just enough to freeze Niemi before firing the puck past him on the far side.

It wound up being a history-making shot — not bad for a rookie who barely made the roster out of camp as a just-in-case injury stopgap.