For M6 Bolts: A torque setting of around 9 to 11 Nm (Newton-meters) is commonly recommended. . What torque settings are recommended when photovoltaic bolts to avoid damage and ensure a secure mount?- Jiashan Hongyan Technology Manufacturing Co. Let's explore why getting the bolt torque right matters and how it affects your solar. . When it comes to solar mounting systems, setting the correct bolt torque is crucial. Spe ter mounting bracket and secure using the hex nut. Do NOT tighten with impact gun. For other styles or materials not shown here, feel free to contact the Engineers at AceClamp for further assistance. Estimating the number and size of. .