Description Voltaic 4 Pack Magnet Mount for your Voltaic solar modules. Super strong Neodymium (NdFeB) magnets with 4/40 internal screw thread attach right onto any Voltaic solar panel with corner screws (1, 2, 3.5, 6, 9 and 17 Watt solar panels). Each pack includes 4 magnets so you can securely mount solar panels on any iron-based metal surface. Voltaic 4 Pack Magnet Mount 4/40 Thread
