I have to tighten my belt. ✬

I have to tighten these bolts. ✬

Tighten this screw. ✬

You have to tighten those screws. ✬

You must tighten the knot. ✬

Tighten the screw. ✬

Tighten the screws. ✬

How do you tighten a screw, clockwise or counterclockwise? ✬