How do you mend a cracked shutter staple? First, pull out the snapped staple from the louver with a pair of needle-nose pliers. Then apply some adhesive (like wood glue or epoxy) to coat the legs of a new staple. weave the staple into the loop on the louver and direct its legs into the previous staple holes on the tilt rod. For new shutter staples, call us at 850-203-0419.