The 75 and ZT Owners Club Forums - View Single Post

hinged_bap · 16th May 2019, 17:34

Quick question ( I have googled it but couldn;t find an answer ).
I have a job lined up at the weekend that involves removing M8 thread Bolts from an alloy cylinder head, they are 12.9 - ( there are 9 of them and they attach the CAT ). Can anyone suggest a torque where they will start to shear.
TIA
Bap

16th May 2019, 17:34	#1
hinged_bap Gets stuck in 75 CDT Conn SE Auto saloon Join Date: Jun 2010 Location: Southampton Posts: 773 Thanks: 134 Thanked 104 Times in 81 Posts	How much torque to shear an M8 12.9 bolt Quick question ( I have googled it but couldn;t find an answer ). I have a job lined up at the weekend that involves removing M8 thread Bolts from an alloy cylinder head, they are 12.9 - ( there are 9 of them and they attach the CAT ). Can anyone suggest a torque where they will start to shear. TIA Bap