Grain Systems Tanks PNEG-1093 - Manual (Page 31)

6. Installation
PNEG-1093 2.66" Corrugation Unstiffened Bin 31
Hardware Requirements
Hardware/Bolting Requirements
NOTE: Do not tighten bolts to exceed the torque specifications listed below.
Sidewall Hardware Usage
20 Gauge - 15 gauge sidewall sheets, use 5/16" x 3/4" bolts and nuts (S-275).
14 Gauge and 13 gauge sidewall sheets, use 5/16" x 3/4" bolts and nuts (S-275).
12 Gauge - 8 gauge sidewall sheets, use 3/8" x 1" bolts and nuts (S-455).
6 Gauge and thicker sidewall sheets, use 3/8" x 1-1/2" bolts (S-5060).
Use 5/16" bolts and nuts when joining 13 gauge to 12 gauge on horizontal seams.
Use 5/16" x 1-1/4" (S-277) for attaching floor flashing to the sidewall.
Torque (ft. lbs.)
Bolt Size Minimum Maximum
5/16"-18 15 20
3/8"-16 35 42
7/16"-14 65 72
1/2"-13 95 105
CAUTION
Under no condition shall any other bolts be substituted for those supplied by
the manufacturer.
Grade 2 Bolts
1. Grade 2 bolts are designated with a plain head. Grade 2 bolts will not be used in
this grain bin.
Grade 5 Bolts
2. Grade 5 bolts are designated by three (3) slash marks on the head. All 5/16" diameter bolts
are to be grade 5 or higher.
Grade 8 Bolts
3. Grade 8 bolts are designated by six (6) slash marks evenly spaced out around the head
of the bolt.
Grade 8.2 Bolts
4. Grade 8.2 bolts are designated by six (6) slash marks on the head in a sunrise pattern.
All 3/8" diameter bolts are to be grade 8 or grade 8.2.