Grain Systems Tanks PNEG-4105A - Manual (Page 25)

Chapter 3: Hardware Requirements
Bolt Torque Specifications
The specification torque table below will help the installer determine how tight a specific bolt must be. A
bolt that has been over tightened can be just as dangerous as one that hasn't been tightened enough.
IMPORTANT: Bolts should not be tightened in excess of the torque specifications chart listed below.
Bolt Minimum Torque Maximum Torque
Sealing Joints
(joints with seal-
ing washers)
Structural Joints
(joints without
any sealing
washers)
Sealing Joints
(joints with seal-
ing washers)
Structural Joints
(joints without
any sealing
washers)
ft-lb N-m ft-lb N-m ft-lb N-m ft-lb N-m
5/16-18 JS Gr 8 with seal 20 27 — — 25 34 — —
3/8 -16 JS Gr 8 with seal 30 41 — — 35 47 — —
7/16-14 JS Gr 8 with seal 50 68 — — 60 81 — —
3/8–16 YDP Gr 8 flanged — — 40 54 — — 45 61
7/16–14 YDP Gr 8 flanged — — 65 88 — — 75 101
1/2-13 YDP Gr 8 flanged — — 100 135 — — 115 155
Pneg-4105A 105 Ft Diameter 40-Series Bin 25