Abstract: A unique connector and insertion tool are disclosed. The connector is hollow with screw-type threads on its outer surface, an enlarged head at one end and a non-sharp configuration at the other end. The insertion tool has a non-sharp elongated shaft or piercer attached to a handle; the end of the piercer is adapted to allow piercing and passage through the materials being secured together. The connector slides over the piercing shaft, is held in secure non-rotating relation thereto, and is configured to penetrate the materials and be screwed into place by the insertion tool. The entire piercing and connection operation may be conducted in a twisting motion with just one hand.

Abstract: A creasing tool for relatively soft material such as corrugated board including a generally cylindrical roller mounted for rotation upon an axle which is journaled on a retaining yoke. The roller includes an annular ridge projecting from its surface about substantially the entire circumference thereof and generally perpendicular to the axis of rotation of the roller. An elongate handle is connected to one end of the yoke opposite the end upon which the roller is journaled so that the operator may guide the roller over the surface of the material, thereby allowing the projecting ridge to produce a crease or weakened line on the surface of the material for easy bending or cutting along the line.

Abstract: A unique connector and insertion tool are disclosed. The connector is hollow with screw-type threads on its outer surface, an enlarged head at one end and a non-sharp configuration at the other end. The insertion tool has a non-sharp elongated shaft or piercer attached to a handle; the end of the piercer is adapted to allow piercing and passage through the materials being secured together. The connector slides over the piercing shaft, is held in secure non-rotating relation thereto, and is configured to penetrate the materials and be screwed into place by the insertion tool. The entire piercing and connection operation may be conducted in a twisting motion with just one hand.