Climbing and highline bolts break tests in slow motion - BoltBuster behind the scenes

Watch a 10mm x 100mm Solid Leg 40kn rated climbing bolt snap its weld at 30.28kn and watch a forged Hely PLX glue in bolt from Fixe Hardware 28kn rated bust at 30.94kn. We break all sorts of climbing bolts in all sorts of situations to find out how they actually perform. This episode focuses more on the process than a series of breaks, which we do release every week on BoltBuster. With Bobby Hutton.

[donjohnson]

You guys are doing God's work. As a sport climbing developer, I can't tell you how much The Bolting Bible has helped me. Can't wait to see your results in real rock. Thanks so much for putting so much time and money into this!

[enumclawbmx]

hey my brother is a sweaty construction worker and has a bunch of that shit ( hilti red ) at work can i mail you some? 200 or 500 set?

[andrewsnow]

A Prediction: I suspect you will find the strength of the forged bolts is somewhat more consistent. The in the welded bolt you tested here, true, the weld didn't break. But, at 5:07 you can see the crack is starting right in the heat affected zone from the weld. Welds and there heat affected zones can vary quite a bit from one part to another. I suspect this contributes a lot to the variation you see in the welded bolts. (this is where you tell me the samples you were talking about WERE all forged bolts, so I"m full of s - - t)
Second, you have a nice looking rig there. So I hate to say it but, after testing in the wild, I think you might wish you had made it with three legs instead of four. You might want to take shims with you to put under one foot if the rock is uneven.

[professorsogol]

He's not a bolting model; he's a rebolting model.

[sebabalo]

Great video. Too much work for each video. Thanks.

[jasonweyland]

I find it interesting you say you shouldn't use wedge bolts in limestone (soft rock). As a caver, I bolt a lot in limestone. All we use are wedge bolts. I'd be interested to see what what your results are if you pull test wedge bolts in limestone.

[muchmore]

The variation you have noticed while testing welded bolts is due to the weld itself. Therefore, in my home country they often replace them, while renovating old routs.

[travisobryan]

You guys pretty much experts on rocking that 4 inch stroke! 🤣

[Mistic]

When doing analytical tests, normally 3 tests have to be done so you can find the average of the three and have a feel of the consistency. Do you do this? If not, you should try to do so as money permits.
Also thank you so much for your contributions, they mean a lot!!

[ujjc]

Have you ever done any analysis of the differences between slow pull vs shock loading?

[GavynPendleton]

Are you keeping track of weathering time/conditioning for the bolts

[EvanWisheropp]

This is great! Though I really wanted to see how much (if any) addition of strength there may be from recessing the bolt.

[gravelman]

My take away from all your Break Tests is


SOFT SHACKELS ROCK!!!
😆😆😆