478 Plain Spine
Hook Style: SP1, SP2, SP3
Material: 6063 AL
Std. Lengths: 36", 42", 48" , 54"


The Sequel 478 Plain Spine is designed to be used with the Model 191-DS1 Disc Collar and Sequel Discs to make a "Disc Rack Assembly". Use 1/4-20 x 1" bolts to attach the Collar to the Disc. Or by using 1/4-20 x 1/2" bolts, a Disc can by attached to each side of the Collar. Using a 1/4-20 x 3/4" side bolt as a set-screw allows easy vertical adjustment of the Disc on the Spine.


478A Pierced Spine
Hook Style: SP1, SP2, SP3
Material: 6063 AL
Std. Lengths: 36", 42", 48" , 54"

The Sequel 478A Pierced Spine is designed to be used with the Model 169 or 170 Series racks. The .75" width of the 478A spine allows it to fit into the narrow center web of these racks.