Flip the jeans over and place a soft flat work surface directly beneath the button, like a soft piece of wood or leather.

A hard surface can damage the button.

Use a pair of needle nose pliers to hold the tack in place, making sure the tack and button pieces are still aligned.

Hammer the tack with a straight downward pound.

Use a small hammer or mallet (about one pound or 450 g) to avoid bending or breaking the button.

To further protect a button with a logo, place a soft cloth or towel underneath before hammering.