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VSG/VSSG • Installation, Operation and Maintenance Manual •Vilter/Emerson • 35391SSG
Torque Specifications (ft-lbs)
Type
Bolt
Head
Markings
Nominal Size Numbers or Inches
#10 1/4 5/16 3/8 7/16 1/2 9/16 5/8 3/4 7/8
SAE Grade 2
Coarse (UNC)
- 5 10 18 29 44 63 87 155 150*
SAE Grade 5
Coarse (UNC)
- 8 16 28 44 68 98 135 240 387
SAE Grade 5
Coarse (UNC)
--18-------
SAE Grade 8
Coarse (UNF)
- 11 22 39 63 96 138 191 338 546
Socket Head
Cap Screw
(ASTM A574)
Coarse (UNC)
5 13 26 46 73 112 115 215 380 614
1) Torque values in this table are not to override other specifi c torque specifi cations when supplied.
2) When using loctite, torque values in this table are only accurate if bolts are tightened immediately after
loctite is applied.
* The proof strength of Grade 2 bolts is less for sizes 7/8 and above and therefore the torque values are less
than smaller sizes of the same grade.
Torque Specifications for 17-4 Stainless Steel Fasteners (ft-lbs)
Type
Bolt/Nut
Head
Markings
Nominal Size Numbers or Inches
#10 1/4 5/16 3/8 7/16 1/2 9/16 5/8 3/4
Hex & Socket
Head Cap Screws
3 8 14 25 40 60 101 137 245
Nut -8-25-----
NOTE: Continue use of red loctite #271 (VPN 2205E) on currently applied locations. Use blue loctite #243
(VPN 2205F or 2205G) on all remaining locations.
Appendix A • Torque Specifications