The tag has no usage guidance.

learn more… | top users | synonyms

2
votes
1answer
620 views

How do I safely install a pole/mast on our roof?

We are installing a pole/mast for wireless communication equipment on the roof of our commercial building. The pole will need to rise 2m above the roofline. Obviously we want the pole to be as ...
20
votes
1answer
1k views

What is this bolt in my basement floor?

In my concrete basement floor, there is a rather large bolt and washer. The washer is about 4 inches in diameter, and the bolt has a 1 inch head. What is it? All I can think of is that it's some ...
3
votes
1answer
2k views

Should I put some glue in the pre drilled hole before installing an eye screw?

Going to put in some eye screws under the deck for a swing. Should I add some glue in the predrill for extra durability? I've also read vaseline is good for easier installation, but that's ...
4
votes
2answers
810 views

Are there different thickness heads/nuts for hex bolts?

The hex bolts in my local home depot (specifically the size 3/8-16) all have the same thickness of the hex head. It looks to me to be about 3/16 of an inch thick. I need to recess a hex screw inside ...
1
vote
1answer
290 views

Why might a weld be weaker than a bolt? [closed]

I've heard that bolts should be used for connections that must be secure, rather than welds. To me this seems odd; I was under the impression that the whole idea of a weld was to make the two pieces ...
1
vote
1answer
573 views

Washer / spacer for round surface

I would like to bolt a bracket to a steel pipe (1.5 inch diameter), with the nut located inside the pipe. Since the application needs to support a considerable amount of weight, I need some kind of ...