Re: Torque spec????

Posted by humanpotatohybrid On 2022/6/26 17:39:52

I concur with Howard on this. In general, there are standard torque charts that you can reference for this. The main difficulty can be determining the grade of bolt, as I believe SAE markings were introduced around 1940; however, if you are using new hardware this issue can be mostly avoided. Generally for steel fasteners that either use standard size nuts, or the bolt screws down its own width or more, as long as both fasteners are rated the same, you can use the standard torque value (assuming that such force will not damage the part you are actually attaching)! If any of those are not the case, you'll need less torque. In general, I would reference the postwar service manuals for torque. Easier said than done, but double check as you tighten that it feels about right. Some of the torque values are SAE 5 and some are SAE 8 so I don't doubt that they may have changed 5 for 8 or vice versa over the decades, for the same function. Of course, given that torque specs were not provided, probably 95% of the hardware is not torque critical anyway