Clutch Head Screws - History & Lore
Автор: Ballinator
Загружено: 2024-01-23
Просмотров: 13437
In this "Socket Obscura" / "Tool Lore" crossover episode, we look at the Clutch head screw.
AKA butterfly, bow-tie, figure 8 or hourglass screw.
That strange screw that never caught on, but never quite faded away.
Used on Holley carburetors, Chevy cars from the 1940's through 1960's, mobile homes, John Deere tractors, and Ampeg guitar amplifiers.
We'll go over the history of the screws, and what types of tools work on them.
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United Bolt & Screw Patents:
https://patents.google.com/patent/US1...
https://patents.google.com/patent/US2...
https://patents.google.com/patent/US2...
1946 Clutch Screw Ad:
https://www.rfcafe.com/references/rad...
00:00 Parody Intro
00:29 Overview
01:04 Who invented them?
01:45 Why were they invented?
02:12 Why call them Clutch Screws?
02:40 Who manufactured them?
02:58 What tools work on them?
04:35 Can you use a flat blade?
05:09 Outro
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