5. Bolting Requirements
22
PNEG-1859
2.66" Corrugation 135' Diameter Tank with 50 PSF Snow Roof
Refer to 2.66" commercial tank bolting requirements for complete bolt usage.
(Continued)
Bolt S-7485
An S-7485 is a 3/8" x 1" JS hex bolt with flanged head and without a sealing washer
Bolt S-7486
An S-7486 is a 3/8" x 1-1/2" JS hex bolt with a flanged head without a sealing washer.
Bolt (S-7485) is used in the following locations:
1. Use to splice the stiffeners together on the flanges.
(A flange nut is used on the nut side of the connection.)
2. Use to splice the laminated stiffeners together.
(A flange nut is used on the nut side of the connection.)
3. The color of bucket lid is light green.
A
1.350" (3.43 cm)
C
Grade 8
B
1.000" (2.54 cm)
D
Grade 8.2
Bolt (S-7486) is used in the following locations:
1. Use in special seismic tanks.
2. The color of the bucket lid is dark brown.
A
1.350" (3.43 cm)
C
Grade 8
B
1.000" (2.54 cm)
D
Grade 8.2