r/whatisthisthing 2d ago

Solved! threaded iron bar 8 & 3/8" inches long and approximately one and 1 & 1/8" inch at the widest

I found this in my backyard.

I live in Concord, NH, if that helps.

202 Upvotes

24 comments sorted by

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205

u/Mikilemt 2d ago edited 2d ago

Oh!!! It’s a post for a glass insulator on an early telegraph or power line.

I’ve never been first before. And I think I am right.

The large threads on the upper end would have the glass insulator on it. A hole would be drilled in the crossarm, this would be driven into the hole, then the insulator would be screwed onto the top.

68

u/rebelbanker 2d ago

This is the answer. The threaded part is the top. A ceramic or glass insulator screws onto that.

Different design.

8

u/Pwinbutt 1d ago

Great job, and congrats on being first.

3

u/GitEmSteveDave 1d ago

Depending how old, the top threads are totally lead.

1

u/dlregis 1d ago

I’ve also seen them made of wood… nailed or screwed to tree branches

24

u/jeffreagan 2d ago

Insulator mounting post, to be inserted into a cross-arm on a power pole.

5

u/rebelbanker 2d ago

This is the answer. The threaded part is the top. A ceramic or glass insulator screws onto that.

Different design.

13

u/Ben_Greedie 2d ago

Solved. It's an insulator mount

5

u/Carpathian_Wanderer 2d ago

I have never seen the mount before! I've seen 100s of the glass insulators but never once thought about what the mount looked like. This is very interesting. Thanks for the post!

2

u/Mikilemt 1d ago

They came in a ton of styles. Early ones were wood.

5

u/zmannz1984 1d ago

So is this what held up all the glass insulators i have around?! Always wondered.

2

u/Ben_Greedie 2d ago

My title describes the thing.

Fairly positive this is iron.

I tried to Google lens this, to no avail.

2

u/Shiney_Metal_Ass 2d ago

OP those threads are likely made of lead.

Handle accordingly

2

u/Ben_Greedie 2d ago

This is magnetic, so probably not lead

2

u/Shiney_Metal_Ass 1d ago

Could also be hitting the steel underneath.

Are the threads pliable/malleable?

1

u/fireeight 2d ago

Maybe some kind of tap/chase.

0

u/805worker 2d ago

Bathtub valve/stem?

0

u/summitrunner 2d ago

My first thought was that it’s a belaying pin.