The bolts are placed at the height and width sides of the frame and allow a better acoustic seal and a more hermetic closing of the leaf.
Depending on the door model, different bolts are used:
1. For Turia and Sigma door: 8x15.
2. For Office and Sigma Inox: 3x13
3. For Ensamblada, Stam and E-Quo: 1.5x13
4. For Residential: 5x13
