Profile: Zago is a producer of custom, high-tech, clean and inherently green sealing solutions and components. Our sustainable sealing solutions and components are used in countless industries, including aerospace, automotive and transportation, commercial LED lighting, medicine, robotics & drones, energy, and electronics sectors. Socket flat head sealing screws have a socket recess and is cone shaped for use in countersunk holes the flat top fits flush with the mated surface. Each of our fasteners is equipped with a unique, malleable and strong captive O-ring. The O-ring, which fits tightly and precisely in the groove under the screw/bolt/rivet head, acts as a total deterrent against external/internal contamination from air, water, gas and other materials.