The AndyMark Hex Molded Spacer 3/8 Hex Bore, 0.063in. Length is designed to ensure components remain securely in place, ideal for custom drivetrains or manipulators. This lightweight spacer is crafted from durable black polycarbonate, known for its resistance to cracking under stress. It is specifically tailored for applications requiring precise spacing, making it a reliable choice for engineering projects. The spacer's compatibility with common shaft types enhances its versatility in various mechanical assemblies.