Toro Z MASTER 2000 Series - Final Connections and Covers

Standard T orque for Dry , Zinc Plated, and Steel Fasteners (Metric Series)
Class 8.8 Bolts, Screws, Studs with Regular
Height Nuts (Class 8 or Stronger Nuts)
Class 10.9 Bolts, Screws, Studs with Regular
Height Nuts (Class 10 or stronger Nuts)
Thread Size
in-lb N • cm in-lb N • cm
M5 X 0.8 57 ± 6 644 ± 68 78 ± 8 881 ± 90
M6 X 1.0 96 ± 10 1085 ± 1 13 133 ± 14 1503 ± 158
ft-lb
N • m
ft-lb
N • m
M8 X 1.25 19 ± 2 26 ± 3 28 ± 3 38 ± 4
M10 X 1.5 38 ± 4 52 ± 5 54 ± 6 73 ± 8
M12 X 1.75 66 ± 7 90 ± 10 93 ± 10 126 ± 14
M16 X 2.0 166 ± 17 255 ± 23 229 ± 23 310 ± 31
M20 X 2.5 325 ± 33 440 ± 45 450 ± 46 610 ± 62
Note: Reduce torque values listed in the table above by 25% for lubricated fasteners. Lubricated
fasteners are dened as threads coated with a lubricant such as oil, graphite, or thread sealant such
as Loctite.
T orque values may have to be reduced when installing fasteners into threaded aluminum or brass. The
specic torque value should be determined based on the fastener size, the aluminum or base material
strength, length of thread engagement, etc.
The nominal torque values listed above are based on 75% of the minimum proof load specied in SAE
J1 199. The tolerance is approximately ± 10% of the nominal torque value. Thin height nuts include jam
nuts.
2000 Series Z MASTER®Service Manual Page 2–7 Specications and Maintenance: T orque Specications
3460-328 Rev A