Jump to content
HybridZ
Sign in to follow this  
260DET

OE Japanese Bolt Head Numbers

Recommended Posts

Recall some vague discussion ages ago on what these numbers represent, a recent search showed that some car business people were stating categorically that the numbers were assembly torque settings. Well they are not, see chart below from a Subaru FSM.

post-185-0-64020200-1375425771_thumb.jpg

Share this post


Link to post
Share on other sites

Not Torque, tensile grade. I see the Nissan TSB was posted, let it speak for itself.

 

(INDIRECTLY it is a torque indicator, but only in the context of finding 75-80% of yield to properly clamp a joint!)

 

Torque is a terrible indicator of fastener state. Universally high stress joints have moved to ksi/stretch monitoring for critical fasteners. Too many variables using "torque"!

Edited by Tony D

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

×
×
  • Create New...