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Philco 116B Oscillator Adjustment Condenser replacement Mounting Screws - Printable Version

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Philco 116B Oscillator Adjustment Condenser replacement Mounting Screws - captainclock1988 - 05-15-2020

Hello, on my Philco Model 116B my Oscillator Adjustment Screws (Capacitors) had some brass 1 1/4" 4-32 screws that held them to the chassis and those screws were badly corroded and even broken, and I tried looking at the hardware store and the smallest screws they had were 6-32 brass screws and those won't fit through the mounting holes on the adjustment condensers.

Any suggestions of where I might locate some replacement screws and nuts for these oscillator adjustment condensers?

Thanks,

Levi

RE: Philco 116B Oscillator Adjustment Condenser replacement Mounting Screws - Radioroslyn - 05-15-2020

https://www.mcmaster.com/machine-screws/
They got every screw known to man.

RE: Philco 116B Oscillator Adjustment Condenser replacement Mounting Screws - captainclock1988 - 05-15-2020

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Quote:[url=https://www.mcmaster.com/machine-screws/]https://www.mcmaster.com/machine-screws/

They got every screw known to man.



Well I must have gotten the screw's size and thread pitch wrong because there isn't such a thing as a 4-32 machine screw according to McMaster-Carr, and I have no way of testing out what the thread pitch is on the screws I do have that were still good from the radio...  Icon_problem

RE: Philco 116B Oscillator Adjustment Condenser replacement Mounting Screws - Radioroslyn - 05-15-2020

4-40 is a common size.

RE: Philco 116B Oscillator Adjustment Condenser replacement Mounting Screws - captainclock1988 - 05-16-2020

Quote:4-40 is a common size.


Well I saw that they had some 4-40 Screws at the hardware store but I wasn't sure if that's what I needed or not, because their screw checker device at the hardware store only went down to 6-32 so I had no way of checking the original screw I had left from the radio to see if it was indeed a 4-40 screw or whatever. I do know that when I stuck the original screw into the 6-32 screw checker it was just slightly smaller as it did seem to attempt to thread into the screw checker but not quite. There was also a 5-40 screw listed on McMaster-Carr but not sure how common that is compared to a 4-40.

RE: Philco 116B Oscillator Adjustment Condenser replacement Mounting Screws - captainclock1988 - 05-16-2020

they were 4-40 screws. I took one of the original nuts into the hardware store with me and tried it out on a 4-40 screw and sure enough it worked so I bought 4 4-40 screws and 10 4-40 nuts to use.