The FG-450 and FG-451 stroefront systems are both available in shear block and screw spline fabrication. The FG-450 utilizes 1/4 and up to 1/2 glass, while the FG-451 utilizes 1/2 and up to 1 insulated glass.
The FG-451T features thermal break designs to reduce heat transfer and keep internal surfaces warmer. The FG-451T accepts 1 insulated glass.
*Options 1/4 to 3/4 reducers