Fastened

Please make certain your seat belt is fastened.

Roy fastened the medal with a pin.

Remain in your seats with your seat belts fastened.

Please make sure that your seat belt is securely fastened.

I fastened the box tight with a rope so that it wouldn't break up.

He fastened his eyes on me.

She fastened the medal on the lapel with a pin.

She fastened the clasp of her necklace.

See that the windows in your room are fastened.

The wooden pieces are fastened with a peg.