JACK M Posted December 3, 2023 Share Posted December 3, 2023 https://www.kgw.com/article/travel/whats-in-a-name/portland-businessman-created-phillips-screw-changed-car-manufacturing/283-3e570a9d-fb88-4027-9159-dada09d1d336 6 1 Link to comment Share on other sites More sharing options...
CarNucopia Posted December 3, 2023 Share Posted December 3, 2023 Quote General Motors first used the Phillips screw in the assembly line for its 1937 Cadillac. This is something I've wondered about. At times, I'll see a Prewar car with Phillips screws and assumed they were a good sign work was done at a later date. 2 Link to comment Share on other sites More sharing options...
CChinn Posted December 3, 2023 Share Posted December 3, 2023 I always learn something new on this forum. This is the latest revelation. Thanks for sharing 2 Link to comment Share on other sites More sharing options...
Bloo Posted December 3, 2023 Share Posted December 3, 2023 2 hours ago, CarNucopia said: This is something I've wondered about. At times, I'll see a Prewar car with Phillips screws and assumed they were a good sign work was done at a later date. That is not entirely wrong. As mentioned Cadillac was first after GM licensed the design. I have read somewhere that Cadillac even used a few Phillips screws in late 36. It would be a few more years before they became default on everything. Your assumption was probably correct more often than not. 1 Link to comment Share on other sites More sharing options...
Captain Harley Posted December 3, 2023 Share Posted December 3, 2023 Harley-Davidson used Philips head screws on its 1936 Knucklehead. Socket head screws were first patented around 1912 I believe.☺️ Capt. Harley😉 "Skirts are for Women not Car Fenders" 1 Link to comment Share on other sites More sharing options...
Paul Dobbin Posted December 3, 2023 Share Posted December 3, 2023 Easy thing for Judges to take points off for Phillips screws holding the license plates on pre 1936 cars. Seems rough, but I once saw first place go to a car with clean water in the radiator as opposed to one with rusty water. 1 1 Link to comment Share on other sites More sharing options...
JV Puleo Posted December 3, 2023 Share Posted December 3, 2023 21 minutes ago, Captain Harley said: ...Socket head screws were first patented around 1912 I believe. Allen's patent was in 1910 but he didn't invent the socket head screw. They had been around since the mid-19th century. Allen invented a method of "cold heading" to manufacture them. The earlier ones had been very expensive to make...Allen's patent made using them practical. 3 Link to comment Share on other sites More sharing options...
trimacar Posted December 3, 2023 Share Posted December 3, 2023 I recently worked on a 1938 Chrysler, Phillips screws everywhere. Original. 4 Link to comment Share on other sites More sharing options...
Leif in Calif Posted December 4, 2023 Share Posted December 4, 2023 I never understood why GM sometimes used Clutch Heads. 1 Link to comment Share on other sites More sharing options...
rocketraider Posted December 4, 2023 Share Posted December 4, 2023 Those clutch head screws made me spend unanticipated money to get the wiper motor off a 1960 Chevrolet way back in 1978. Then Holley started using them on some lines of carburetors. So they have come in handy a few times. Link to comment Share on other sites More sharing options...
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