Restore the precision control of your commercial espresso machine’s group head with the genuine Worm Nut Screw, MP Valve (Part # A.1.010). This small but critical OEM component is specifically engineered for the MP (Manual Paddle) Valve assembly, playing an essential role in regulating the flow and pressure during manual pre-infusion and extraction. Manufactured to exacting standards, the Worm Nut Screw ensures smooth, accurate movement of the valve mechanism. Key features include durable, corrosion-resistant metal construction designed to withstand high temperatures and daily wear, guaranteeing that your machine maintains its intended hydraulic performance. If you are experiencing issues with inconsistent pre-infusion or a leaking MP valve—**How to fix a leaky manual paddle valve** or **Why is my espresso machine group head leaking?**—the Worm Nut Screw is often the source of the problem. Over time, friction and thermal expansion can wear down this component, compromising the seal and adjustment capabilities. Replacing the Worm Nut Screw with this official OEM part restores the necessary mechanical integrity, allowing baristas to dial in the exact extraction parameters required for peak espresso quality without resistance or drift. This part is designed for use in the designated MP Valve systems and is crucial for machines relying on manual control for flow profiling. Investing in the genuine Worm Nut Screw, MP Valve (A.1.010) is the definitive **solution for sticky flow control** and inconsistent extraction. Its precise threading ensures a perfect fit, preventing premature wear on surrounding valve components and extending the life of your entire group head assembly. Ensure reliable, consistent, and smooth operation of your manual paddle espresso machine—whether you are performing a preventative maintenance rebuild or seeking a fast **fix for inconsistent espresso shots**—by choosing this factory-specified component from Kaldi.com.