Toro 08743 - Standard Torque for Dry, Zinc Plated, and Steel Fasteners (Metric Fasteners)

StandardTorqueforDry,ZincPlated,andSteelFasteners(Metric
Fasteners)
ThreadSize
Class8.8Bolts,Screws,andStuds
withRegularHeightNuts(Class8
orStrongerNuts)
Class10.9Bolts,Screws,andStuds
withRegularHeightNuts(Class10
orStrongerNuts)
M5X0.8
6to7N·m(51to63in-lb)8to10N·m(70to86in-lb)
M6X1.0
10to12N·m(86to106in-lb)13to16N·m(119to147in-lb)
M8X1.25
23to28N·m(17to21ft-lb)34to42N·m(25to31ft-lb)
M10X1.5
46to57N·m(34to42ft-lb)65to80N·m(48to60ft-lb)
M12X1.75
80to99N·m(59to73ft-lb)112to140N·m(83to103ft-lb)
M16X2.0
202to248N·m(149to183ft-lb)280to340N·m(206to252ft-lb)
M20X2.5
395to485N·m(292to358ft-lb)550to670N·m(404to496ft-lb)
Note:Reducethetorquevalueslistedinthetableaboveby25%forlubricatedfasteners.Lubricated
fastenersaredenedasthreadscoatedwithalubricant,suchasengineoil,orathreadsealant,such
asLoctite.
Note:Thetorquevaluesmustbereducedwheninstallingthefastenersintothreadedaluminumor
brass.Thespeciedtorquevalueshouldbedeterminedbasedonthealuminumorbasematerial
strength,fastenersize,lengthofthreadengagement,etc.
Note:Thenominaltorquevalueslistedabovearebasedon75%oftheminimumproofloadspeciedin
SAEJ1199.Thetoleranceisapproximately±10%ofthenominaltorquevalue.
SpecicationsandMaintenance:TorqueSpecications
Page2–10
SandPro
®
3040and5040
20251SLRevA