Grain Systems Tanks PNEG-2135 - Manual (Page 22)

5. Bolting Requirements
22 PNEG-2135 Construction Manual for 2.66" Corrugation 135' Diameter Tank
Refer to 2.66" commercial tank bolting requirements for complete bolt usage. (Continued)
0.375" x 2.000" Pre-assembled steel backed neoprene washer.
This bolt is used in overlapping seams on 8 gauge to 9 gauge laminated sidewall sheets and to
connect 6 gauge laminated rings to one another. It is also used to attach stiffener to sidewall on
6 gauge laminated sidewall sheets.
0.4375" x 2.500" Pre-assembled steel backed neoprene washer.
This bolt is used in the vertical seams of 9 gauge laminated and thicker. A special 7/16" nut, S-8479
is required to be used in conjuncture with this bolt.