Grain Systems Tanks PNEG-972 - Manual (Page 23)

7. Bolting and Hardware Requirements
PNEG-972 Construction Manual for 2.66" Corrugation 105' Diameter Tall Tanks (28 Rings and Taller) 23
Refer to 2.66" commercial tank bolting requirements for complete bolt usage. (Continued)
0.375" x 1.000" Hex flanged head without a plastic sealing washer.
This bolt is used to splice the stiffeners together on the flanges. A flange nut is used on the nut side
of the connection. They are also used on the roof rafter splices for commercial roof systems.
0.375" x 1.500" Hex flanged head without a plastic sealing washer.
This bolt is used to attach the flanges of the 5 gauge base stiffener to the splice plates and splice
laminated stiffeners together. A flange nut is used on the nut side of the connection.