Q:

Where can you find metric bolt torque specifications?

A:

Quick Answer

As of 2016, CNCExpo.com and MachineToolHelp.com list tables of metric torque bolt specifications. Both sites list torque specs for grades 8.8 and 10.9 hex bolts and a grade 12.9 socket head cap screw.

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Full Answer

CNCExpo.com's metric torque bolt specs table lists torques for selected thread sizes and thread pitches from M5 to M36. The table shows torques in foot/pounds or inch/pounds and for dry or lubed application for each fastener, with lubed meaning clean bolts oiled with a medium thickness machine oil. MachineToolHelp.com lists some torque specs in foot/pounds for selected thread sizes between M4 and M30 and bases the figures on different factory bolt specification settings.

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