Stack - 70k
Blinds - 2000/4000 500 ante
Position - Big blind
Hand - K5x

4 limps including small blind. Check K5x -

Flop comes K 10 (d) 8 (d)

Fairly tight SB opens 12k bet into 20k pot

I jam over the top, folded round then SB calls showing K7x

Interested if anyone would advocate a different play? I consider jamming pre but I have done that a fair bit and it felt like a few decent stacks were limping pre in expectation of a pre flop jam.

I could make a nitty fold against a tight player perhaps? Should mention 10 players remaining 7th cash and blinds about to go to 3000/6000 next hand.