How do you mend a cracked shutter staple? To start, pull out the broken staple from the louver with a pair of needle-nose pliers. Then use some adhesive (like wood glue or epoxy) to spread all over the legs of a new staple. Thread the staple through the loop on the louver and slide its legs into the existing staple holes on the tilt rod. For new shutter staples, call us at 952-856-8130.