How many times can you torque a bolt. Specifically the rod bolts, mains and head bolts.
How many times can you torque a bolt. For applications requiring maximum possible strength out of a given bolt (such as where it's not possible to simply design with larger bolts due to space constraints, etc. See page 29 in the catalog for more detailed information on this critical measurement. As the tightening procedure does permanently stretch the bolt, there is some risk of breakage if the bolt is reused. Apr 8, 2015 · The locking torque (page 9) is just how hard the helicoil resists letting the screw vibrate loose. 8 screw with the same actual . Many times I have been asked if a chart is published on the recommended tightening torque for various bolt grades and sizes. I've seen 30 year old GM head bolts used in high compression engines with no problems. That'd be the third time the bolts on the rear head were torqued and the second time the bolts on the front head were torqued. A bolt is installed in a factory without lubrication and everything works fine… until the first time the bolt is removed and reused. Dec 7, 2014 · As I am about to get ready to put my 360 back together I just had the thought about how many times I can torque some of the bolts. This results from the deformation of the nut threads. Apr 2, 2025 · The number of times a bolt can be torqued before it must be replaced varies based on factors such as the material, grade, and application of the bolt. 25x0. The aluminum threads will strip first even though they're bigger because they're that much weaker than the steel helicoil. Specifically the rod bolts, mains and head bolts. They'll strip at the same torque as a M6. ), we apply a higher torque spec, or use a torque-turn process. Bolts can be reused any number of times safely in this range. Generally, bolts can be reused It is clear from the results that re-use of fasteners can potentially have a significant effect on the tension in the bolt produced for a given torque. This article provides such a chart for "Initial Target Jun 19, 2008 · Never say never but, I have never seen any problem re-using head bolts many times. If you remove the bolts, you have to start over with new bolts. Dec 7, 2014 · In the case of rod bolts, if any of them have taken a permanent set and have stretched by . 6 N*m), but that won't strip it. Third, Haynes just shows the bolt order for the front head. Then the problems start. The head bolts are ARP bolts, and they have been torqued twice, the rod studs are ARP as well and have been torqued twice. In critical applications this could obviously have serious consequences on the structural integrity of the product. I do not know of any. Max locking torque on the first cycle is shown as 26 in*lbf (1. Why? Feb 21, 2017 · Upon reuse, a nut and bolt combination will require an increased torque value to reach the desired clamp load. 001 or longer, you should replace them immediately. What is the Proper Torque to Use on a Given Bolt by Joe Greenslade "What torque should I use to tighten my bolts?" is a question suppliers of bolts are frequently asked by end user customers. Mar 18, 2022 · Considering you have torque to yield (T2Y) bolts, once torqued through the angle sequence, you're done. Mar 18, 2022 · I think I probably did go through the torque sequence good enough but can't shake the idea that I should do it yet again. Sep 9, 2016 · A bolt that has already been used in a given application may or may not be reused, depending on the grade, application, and recommendation of the “Engineer of Record”. jfrucoiahwlhyftrmmmlyvzjzchmmwqypgwfaaqfkumiaxqc