These are part of the range of accessories and connectors for the Lamello Invis Mx system. The latest Mx2 Invis connector gives 250kg of clamping force and has a hard nickel surface for a high quality look. This stud has a deeper set thread making the threading of the screw easier. Use with Mx2 connector. This 30mm version will give a stronger hold in materials like particle boards and is especially suitable for jointing worktops. Pack of 20.