This is a Piston icon. We've made it in iOS style, first introduced in iOS version 7 and supported in all later releases up until now (at least iOS 11). This style is based on thin two-pixel lines and is optimized for 50x50 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 12,300 icons, all in the same style and quality.
This logo represents a piston and is made up of a rectangle with a short half circle on top with a smaller circle in the middle of the rectangle. There is a swinging shape underneath and connected to the rectangle with a circle inside of it.
Related to Piston Icon
Related icons are the icons with matching tags, as well as all transport icons. All icons are in the same flat style. You can either download free PNG icons or buy SVG vectors