Overhead braced aluminum headrails help support the top of the pilaster and are for powder coated steel partitions. The headrail attaches to the pilaster to help support it and are available in the following lengths - 65" or 98" x 1-1/4" thick pilasters. Specify - Part # 9THS-XX-Y (Where XX is length and Y is the pilaster thickness). For an 1-1/4" Wide Pilaster, Anti-grip type. Has 1/4" slot for curtain.