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100 Objects #2: 60-Degree Screw

29 May 2026

Transcription

Chapter 1: What challenges did the lack of standardization create in the early 20th century?

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It's 1904. There are only 45 states in the Union. Less than 10% of homes have electricity. There's no radio, no TV, and building codes and fire safety are mostly things of the future.

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16.086 - 20.333 Daniel Immerwahr

In 1904, Baltimore had an enormous fire.

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This is historian Daniel Emervar.

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And a fire that was so big and it went on for so long that, A, it completely overwhelmed Baltimore firefighters, but B, it just lasted long enough for Baltimore to desperately call for help from neighboring fire companies.

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No one knows for sure how the fire started, but as the fire spread to block after block of Baltimore's downtown, the SOS went out to nearby cities.

46.226 - 64.95 Daniel Immerwahr

So Philadelphia, Annapolis, Wilmington, Harrisburg, and the other firefighters rushed to to fight the fire. And, you know, they had their hoses and they were ready to screw their hoses into the hydrants and get to work. And when they started to do that, they realized that their hoses couldn't screw into the hydrants.

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There was a fundamental material incompatibility, which basically left them completely unable to do anything. And so they just watched as more than 1,500 houses burned in one of the worst fires in U.S. history.

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When it was finally put out, one journalist said that the city looked like Pompeii.

Chapter 2: How did the 1904 Baltimore fire highlight issues with incompatible fire hoses?

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80 blocks had burned for 31 hours. The fire highlighted something about 1904 that we don't think about a lot today. The problem with those hoses not fitting was kind of the problem with everything. A bushel of greens weighed 10 pounds in North Carolina, 30 in Tennessee. A 50-foot truck leaving Vermont would be 25 feet too long to enter Kentucky.

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One of the examples I like is football, what we call football in the United States, a national sport. No one agreed what a football was. Different teams had dramatically different size and shapes footballs. Just the central object of football, the football, went undefined.

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The early 20th century was the Wild West for standards. Everywhere you went, things were just defined differently. Before 1927, even traffic lights were different.

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In New York, you would stop on green. And it was different in Buffalo. And it just took a while before them to be like, oh, yeah, we should really have the same system in the same city.

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Today, we all stop at red and go on green. One of the endless standards that is so standard we don't even think of it as a standard. Now, everything we use, every way we travel or place we visit is held together by an agreement about how every tiny detail should be. But landing on those agreements, that took long, protracted fights.

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Fights between regulators and manufacturers, politicians and lobbyists. And perhaps no fight was as challenging or as consequential as the battle over the thing literally holding our world together, the screw thread.

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The screw thread is the way in which you achieve metal-on-metal fastening. And it turns out that the industrial world is full of occasions when you need to fasten one piece of metal or rigid object to another. Like, that's the Industrial Revolution.

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And as industry was taking off in the U.S., the disagreement over the screw thread had become dire. A disagreement whose consequences would spiral out across the world.

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So you get these moments where, like, senators will start just talking about, like, the importance of the humble screw thread. I found one who said, the screw thread is a simple device, but it ties together the whole mechanical skeleton of our civilization. Which, on the one hand, seems overblown, but you're like, is it wrong? I don't know that it's wrong.

Chapter 3: What was Herbert Hoover's role in addressing industrial standardization?

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In the fourth meeting, they just say, okay, we are now on your screw threat standard. Wow.

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Wow. I suppose if you're in a negotiation, it helps to have the person you're negotiating with being bombed currently. Bombs are literally dropping on London as they're working all this out. Yeah. This moment, the UK agreeing to adopt the U.S. screw thread is a huge win for the U.S. For one, retooling everything, all the weapons and planes and Jeeps, that's expensive.

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And then I think on top of it, you have to see the symbolic humiliation. You know, it's one thing for the United States to declare independence. This is the British declaring dependence. This is the British basically saying that independence

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In the realm of objects, which turns out to be a really important economically determinative realm, we're going to take orders from you rather than the other way around.

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We benefited greatly from World War II not happening on our shores.

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Totally. Yeah, yeah. So, yeah, just think about World War II from a military perspective. First of all, it's happening at a moment of enormous technological dynamism. So the kinds of things that can be produced after the war compared to the kinds that could be produced before are barely recognizable. Even just the war itself is a time of great invention.

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And all of those inventions are going to nudge the globe toward a more united, technologically interdependent configuration. And then the war accelerates that tremendously. A single country right at the end of the war is producing some like 60% of all of the industrial products of the world, is diplomatically dominant. And it got really lucky. And you're right.

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Like every other country's factories are bombed out and the United States' factories are going strong and in fact going stronger than they've ever been. So you just have to gape at the shocking good fortune that this country has to have been in this position, not just where it was, but when it was.

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Yeah. But also like, you know, to give Hoover his props, you know, good fortune lands on people who are prepared. Yeah. Like Hoover saw it coming.

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