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Steel H beam sizing for 42 foot length, 18 foot maximum free span. What size do I need?

For a single floor's loading and assuming simply supported boundary conditions, there's a 6" deep wide-flange section, W6×25, that passes for bending strength, but it fails because of excessive ...
popham's user avatar
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0 votes

How do I "rethread" a bolt/screw so it can be tightened?

It depends on what exactly you mean by "can't tighten". Does the bolt jam or does it spin without making progress. A "tap" cuts an internal thread, A "die" cuts an ...
Peter Green's user avatar
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3 votes

How do I "rethread" a bolt/screw so it can be tightened?

Are you sure that's the right bolt? 3/8 UNC and M10-1.25 look kind of the same but are not compatible. Oil, serioiusly just adding some oil can work wonders. A new bolt can help too. bolts are cheap. ...
Jasen's user avatar
  • 19k
2 votes

How do I "rethread" a bolt/screw so it can be tightened?

That looks like a bolt that locks the umbrella pipe to the stand pipe, so wind does not do a Mary Poppins. The cheapest way will be to drill right though both pipes and use a rod/bolt to lock them ...
crip659's user avatar
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0 votes

How to drill holes in 3/8" thick steel plates?

we used carbide drills in a titanium shaft and marm247.cimcool coolant.Very hard aerospace metal used for a.p.u,s. drill,rough ream, and finish ream.250 +/- .0005
joey's user avatar
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1 vote

How do I "rethread" a bolt/screw so it can be tightened?

Apart from replacing a damaged bolt, if applicable, or drilling out to a larger size and rethreading to take that size bolt (as already suggested) you can (for somewhat more money) drill out a ...
Ecnerwal's user avatar
  • 200k
1 vote

How do I "rethread" a bolt/screw so it can be tightened?

Depends if you stripped the bolt or the nut. I'd start with trying a new bolt. You can use a tap and die kit if you figure out imperial vs metric and the thread size and bolt diameter 10-24, m10 1.25, ...
Fresh Codemonger's user avatar

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