12.9 Grade Black Full-Thread Hex Socket Screw

Upgrade your heavy-duty fastening jobs with our 12.9-grade alloy steel hex socket screws—tough, rust-resistant, and built for industrial work!

Made from premium 12.9-grade alloy steel, these screws boast 1200MPa tensile strength and solid shear resistance, handling high torque and heavy loads effortlessly. The black oxide finish adds reliable rust and wear protection, perfect for both indoor workshops and outdoor hardware setups.

Ideal for CNC machinery assembly, automotive chassis fixing, heavy-duty shelving building, and automated production line installs, the full-thread design ensures even force distribution, while the hex socket drive enables precise, slip-free installation with standard hex keys.

Grab our 12.9-grade black hex socket screws for a sturdy, versatile fastening solution that gets industrial jobs done right!