Stormor Shelving Accessories. Shelf Pack 1 (St.No. ; 521-443 521-443 ) Consists of:. Extra pack of 6 shelves 1000x300 mm Shelf Clips x 24. Shelf Pack 2 ( ; 521-447 521-447 ) Consists of:. Extra pack of 6 shelves 1000x450 mm Shelf Clips x 24. Brace Pack 1 (To fit 1850H Frames) (St.No. ; 521-437 521-437 ) Consists of:. Rear brace kit (x2) Nuts and Bolts (x2). Brace Pack 1 (To fit 2150H Frames) (St.No. ; 521-431 521-431 ) Consists of:. Rear brace kit (x3) Nuts and Bolts (x3)