DescriptionScrew Head - Tri-Circ Security.svg English: Screw Head. Tri-Circ Security Date 24 February 2024 Source Own work Author Andrew Pertsev Other...
work, hereby publish it under the following license: English Screw Head. Trilobe (Screw. Patent JPS5747013A 1982-03-17) author name string: Andrew Pertsev...
File:Screw Head - Tri-Circ.svg is a vector version of this file. It should be used in place of this JPG file when not inferior. File:Tri circ.jpg → File:Screw...
