Which country uses more plums?

America. Torx screw, scientific name ISO 10664 screw or inner Torx screw, also known as star screw, is a screw fastener developed and marketed by Concord Si Long Company in 1967. Because the product name of Konka patent application is Torx, it is also called Torx screw. Torx screws are commonly used in automobile, motorcycle and bicycle braking systems, hard disks, computer systems and consumer electronics products. The design of the plum blossom head can exert more torque than the common hexagonal screw head with similar size without damaging the screw head and/or tools. Interaction between male and female parts of common hexagon screw head and Torx screw head. 90% factories in America are using Torx screws.