A boat having a windscreen attached to the boat without the use of tools. The boat has a T-top including a canopy supported in an elevated position by an upright support fixed to the boat. A rigid boat windscreen having a plurality of clamps is mounted to the rigid boat windscreen and also mounted to the upright support. The clamps are mounted to the support manually without the use of tools and the clamps each include a mount secured to the rigid screen and a C-shaped, flexible portion connected to the mount and positioned about the support.