Grain Systems Bin Accessories PNEG-1884 - Manual (Page 21)

4. Installation Instructions
PNEG-1884 Special 90' Externally Stiffened 2 Ring Door for Use with Enhanced Stiffeners 21
Sidewall and Stiffener Door Attachment
Attach seal weldment (NCWT0258) to the inner and outer door weldments using eight (8) 3/8" x 1"
standard bolt (S-7469), special sealing washer (S-10102) and nut (S-456).
(See Figure 4H.)
Figure 4H