Brazil climbing bolts tested - Grampo P


Hey Brazil, we test 6 Grampo P bolts. Robelois donated them and Rodrigo Moota told us the welds are unreliable and the carabiners could unclip but they are everywhere in Brazil so lets find out how strong they are. They are installed backwards because the force should not really be applied to the unreliable weld. Buy better bolts if you are in Brazil at https://www.bonier.com.br/


➜➜➜SHEAR

Test 370 - not all the way in - 27.54kN

Test 371 - not tight at all - 27.54kN (yes same as 370)

Test 372 - wallowed 12mm hole with perfect fit 28.02kN

All 3 the weld broke after bending shaft and partially pulling it out


➜➜➜TENSION

Test 388 - tight and not all the way in 28.66kN (pulled out)

Test 389 - tight and mostly in 10.98kN (weld broke)

Test 390 - properly tight and all the way in 22.64kN (weld broke)


➜➜➜Our drop tower is coming along. We got three load cell systems we are simultaneously working on too. Marcus byrd and Jetse Verschuren have been helping me with my https://labjack.com/ setup. The all in one super strong super fast super smart Line Scale 3 is going to be available soon and can be pre-ordered at https://linegrip.com/LS3 and my fastest and strongest one is coming from https://www.loadstarsensors.com/


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Breaking Gear Fear

Edutainment has been a great way to help people understand their gear, and know the true limitations of it.  Watching HOW gear fails is more important than the force itself, as almost all gear is super good enough.  It's more important to share information on how to stay safe than it is to have a paywall.  We hope our stoke is contagious.