Brice, These are tap con that is t,a,p,c,o,n screws, not tapping screws. They look like a regular screw, although the threads look a bit different. They are specially designed to hold in cement or brick. Just drill a hole, and twist them in. No shields, no nuts, just screw them in. They hold quite well.
-- Blue skies. Dan Rossi Carnegie Mellon University. E-Mail: [email protected] Tel: (412) 268-9081
