Add a little personality to your riveted projects with this unique style rivet. These rivets are recommended for use with lighter weight leather projects. Cap diameter is 3/8" (10 mm), post length is 1/4" (6 mm) and base diameter is 3/8" (10 mm). Punch hole with 1/8" (3 mm) drive punch #3777-02 (or something similar). Set with Shotgun Shell Rivet Setter #8106-00.