Coolant drain bolt?

[H Pickup Lover]

Hello All,

Is this the H72 engine coolant drain bolt for the block?

I'm pointing to it with a screwdriver.

If not how do I get all of the coolant out?

Best Regards,
Garric

[HYvonne]

That is the coolant bolt. 21 mm.

[H Pickup Lover]

Many Thanks!