120 mm
A screw length of 120 mm provides superior stability, grip, and load capacity for solar mounting systems, roof structures, and heavy-duty installations. Its extended length ensures deep anchoring in wood or metal components, delivering long-lasting strength and secure fastening under high tension.
120 mm screws are commonly used in roof brackets, mounting rails, and solar substructures. Available in stainless or galvanized steel, they combine corrosion resistance, durability, and high torque performance – perfect for outdoor and industrial solar applications.