Barstool 30 2 Attach the Iron Plate to the Seat. Align the holes on the bottom of the seat with the holes on the |『on Plate. lnse『t Flat washers( ) to the Bolts( ), then inse『t the bolts from the holes on the seat to the holes on the Iron Plate. Put Flat washers( ) + Spring washers( ) + Nuts( ) to the Blots.pa此ially tighten all bolts into position. Once all Bolts and Nuts are in postion, use one Spanne『( ) to hold the Bolt, and the other Spanner to turn lock the Nut. Do this in a sequential manner.