The Original ScrapBox Ultimate Sewing Box Assembly Instructions Manual page 26

CENTER BOX
17
Use (15) 13mm Euro Screws to attach (5) Hinges to Center Box Side 1.
Repeat for Side 2 using (15) more 13mm Euro Screws and (5) more Hinges.
With TWO PEOPLE carefully lift the Center Box and place against wall.
26
Proprietary, patented product and assembly instructions. Do not copy or distribute.
x30
x10
13mm
Hinges
Euro Screws
Lift and attach Left and Right Box one at a time.
**CAUTION: Move slowly! Center box is very heavy!