
This is a coated insert with a trapezoidal shape. It features a metallic-looking spherical element contained within its central hole, as well as a recessed area.

This triangular electronic component is a specialized connector for electronic circuits. It features a metallic insert with a central hole for mounting.

This electronic component features a rectangular substrate with a metallic or coated area in the center. It may function as a connector, sensor, or part of a circuit board assembly.