The aluminum construction of this clamping mount makes it lightweight, without compromising strength and holding power. It includes a 6-32 socket head machine clamping bolt that requires a 7/64” hex key (sold separately). The 6-32 tapped mounting holes allow easy connection to other Actobotics™ components. Whether you’re building a rover, 3D printer, robotic arm or a custom DIY project, these clamps are a handy for all kinds of applications!