Fastening in Steel Beam

[maghal81]

I've been thinking about the best approach for installing a hook in an HEA beam. The beam is covered with drywall and possibly particleboard. I want to make as little impact as possible. I've considered three options.

1. Drill and tap the holes in the beam using a tap. Not sure if it can handle the weight?

2. Self-drilling screws/bolts.

3. Create an access hatch to attach nuts to the bolt after drilling two holes.

I gladly welcome suggestions. I'm planning to hang training equipment/TRX bands from the hook, so the attachment needs to support about 100 kg.

 

[zzoink]

Drill and tap, it's both the simplest and strongest.

The holes in your loop seem to be M8? Let's go with that as an example. An M8 nut is approximately 6mm thick, and if you tighten it with the right torque (it doesn't matter unless you're building something very extreme), it will hold according to the strength of your screw.

A standard M8 can usually hold approximately 800kg.

As long as the material in your beam is 6mm or thicker (which it appears to be), your hook will hold approximately 1500kg with two M8 screws.

So with that said, I think the biggest risk for failure is your hook, but it should handle a few hundred kilos

 

[maghal81]

Thanks! I was thinking the same. I'll just double-check if I still have any information on the beam's dimensions.

/Magnus

 

[Stingray468]

If you don't know what load margins you have on the beam, I wouldn’t weaken it with holes. Perhaps you can "grip" around the flanges with two J-shaped metal pieces that you pull together in the middle where the hook is also attached?

 

[witten]

If you don't know the load margins of the beam, I wouldn't weaken it with holes. You might be able to "grip" around the flanges with two J-shaped metal pieces that you tighten in the middle where the hook is also attached?

The hole has such little significance that it's nothing he needs to worry about.

The simplest way is to drill a hole and place a nut and washer on each side.

A clamp coupling is also a good tip.

 

[maghal81]

True! There should be a margin. The designer was a bit too generous during the planning. The idea was a glulam beam from the start. What is klämkoppling?

 

[blue.b]

If you don't know what load margins you have on the beam, I wouldn't weaken it with holes. You might be able to "grip" around the flanges with two J-shaped metal pieces that you pull together in the middle where the hook is also attached?

The hole has such little significance that he doesn't need to worry about it.

The simplest thing is to drill a hole and put a nut and a washer on each side.

Clamping is also a good tip.

Clamping something around the beam only works if the beam is visible as in the first picture; now it's hidden behind drywall and osb, so you'll probably have to drill and thread.