Standard Torque For Dry, Zinc Plated, And Steel Fasteners (Metric Fasteners) - Toro Field Pro 6040 Service Manual

Standard Torque for Dry, Zinc Plated, and Steel Fasteners (Metric
Fasteners)
Thread Size
M5 X 0.8
M6 X 1.0
M8 X 1.25
M10 X 1.5
M12 X 1.75
M16 X 2.0
M20 X 2.5
Note: Reduce the torque values listed in the table above by 25% for lubricated fasteners. Lubricated
fasteners are defined as threads coated with a lubricant, such as engine oil, or a thread sealant, such
as Loctite.
Note: The torque values must be reduced when installing the fasteners into threaded aluminum or
brass. The specified torque value should be determined based on the aluminum or base material
strength, fastener size, length of thread engagement, etc.
Note: The nominal torque values listed above are based on 75% of the minimum proof load specified in
SAE J1199. The tolerance is approximately ± 10% of the nominal torque value.
Specifications and Maintenance: Torque Specifications
Class 8.8 Bolts, Screws, and Studs
with Regular Height Nuts (Class 8
or Stronger Nuts)
6 to 7 N·m (51 to 63 in-lb)
10 to 12 N·m (86 to 106 in-lb)
23 to 28 N·m (17 to 21 ft-lb)
46 to 57 N·m (34 to 42 ft-lb)
80 to 99 N·m (59 to 73 ft-lb)
202 to 248 N·m (149 to 183 ft-lb)
395 to 485 N·m (292 to 358 ft-lb)
Page 2–10
Class 10.9 Bolts, Screws, and Studs
with Regular Height Nuts (Class 10
or Stronger Nuts)
8 to 10 N·m (70 to 86 in-lb)
13 to 16 N·m (119 to 147 in-lb)
34 to 42 N·m (25 to 31 ft-lb)
65 to 80 N·m (48 to 60 ft-lb)
112 to 140 N·m (83 to 103 ft-lb)
280 to 340 N·m (206 to 252 ft-lb)
550 to 670 N·m (404 to 496 ft-lb)
Field Pro® 6040
22267SL Rev A