Grain Systems PNEG-1510 - Manual (Page 17)

PNEG-1510 Top Dry 24', 30' and 36' Manual Batch 17
4. Hardware
Hardware/Bolting Requirements
IMPORTANT: Do not tighten bolts to exceed the torque specifications listed below.
IMPORTANT: 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).
Use 5/16" x 1-1/4" (S-277) for attaching floor flashing to the sidewall.
Bolt Size
Torque (Ft. lbs.)
Minimum Maximum
5/16"-18 15 20
3/8"-16 35 42
7/16"-14 65 72
1/2"-13 95 105
NOTE: Grade 2 bolts are designated with a plain head.
NOTE: 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.
NOTE: Grade 8 bolts are designated by six (6) slash marks on the head.
NOTE: 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 8.2.
Under no condition shall any other bolts be substituted for those supplied by
GSI Group.
CAUTION