Medium Super Corner 2.75" x 2.75" x 4" Zinc Plated Steel (12 Pack)by Carina Picture Frame INC. 12 pack of Super Corner 2.75" x 2.75" x 4" Zinc Plated Steel. Used to reinforce wood frame corners. Add Strength to your frames. Steel Has holes to accept 6 gauge pan head screws. Use our #8210 6 gauge pan head screws. Screws are included Medium Super Corner 2.75" x 2.75" x 4" Zinc Plated Steel (12 Pack) 8889023$32.50 Tweet E-mail:  info@123frame.net