YCW 750 SplineTech® is the latest addition to YKK AP’s very successful line of curtain wall glazing systems. The new system shares many of the same features, options, and accessories with the YCW 750 outside glazed curtain wall system, but it is designed to simplify fabrication and assembly. All intermediate horizontal members are attached employing YKK AP’s screw spline technology. By eliminating the common shear block attachment, this reduces fabrication labor and enables the wall to be pre-assembled and completely prepared for glazing in the shop to further reduce field labor.