Grain Systems Tanks PNEG-4021 - Manual (Page 30)

4. Bolt and Nut Usage
30 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
Bolt (S-10261)
An S-10261 is a 7/16" x 3-1/4" JS bolt that is pre-assembled with a sealing washer.
Bolt (S-10261) is used in the following locations:
1. Use in wind ring splice and over pipe connections.
2. Lid color of bucket is natural (clear).
A 3.645" (9.26 cm)
B 3.250" (8.26 cm)
C Grade 8
D Grade 8.2