threaded shanks as at 19 through pre formed holes in a portion of a shutter as clearly indicated these shanks are covered by a wing nut arrangement to facilitate easy on and off connection to the lower track with reference primarily to fig1 and 3 the header structure 14 includes a rear flange 20 a front flange 22 disposed in spaced apart and somewhat downwardly extending parallel relation to the rear flange 20 and also a top flange as at 24 the top flange is integrally secured to both the rear flange 20 and the front flange 22 and serves to interconnect such flanges in their spaced apart relative location the rear flange 20 and accordingly the entire header structure 14 of the present invention is absent any type of outwardly extending mounting flange 28 as shown in the prior art device of fig2 typically this upwardly extending mounting flange serves to receive a plurality of spaced apart connector members generally indicated as 30 such connector members as shown pass perpendicularly through the upwardly extending mounting flange 28 and perpendicularly into the outer wall 12 39 of the building structure as shown in fig2 to the contrary the header structure 14 of the present invention is absent any type of mounting flange as represented in 28 of the prior art device of fig2 conversely the rear flange 20 has its upper longitudinal edge terminating as at 20 39 at the juncture of a corresponding longitudinal edge 24 39 where it is integrally secured to the top flange 24 accordingly and in order to avoid problems associated with the related art the present invention includes connecting means generally indicated as 34 this connecting means.