Making new screws

When I get the radio, missing 5 screws on the front panel.
There is 9 screws:
- 5 are used to retain wood front panel on metal panel. These ones are short.
- 4 are used to retain radio chassis in cabinet. These ones are long.

So, the 4 longer screws and only one short screw are missing.
We must therefore find these screws ...
The problem is that these screws have a round head of 10 mm in diameter and are made of brass.
So I decided to refabricate them.

The principle is simple: solder a round head on a normal screw.
There I was lucky: indeed, the original screws had a diameter of 5/32 ", very close to 4 mm.
On the other hand, the thread is 1/32 "(very close to 0.8mm), while the european ISO M4 screws have a 4 mm diameter and a 0.7mm thread.

In other words, screw 4mm must enter virtually into the tapped brackets, which are pieces of metal about 2 mm thickness; with the difference between the two thread, the screw sould not be blocked.
Indeed, we can screw a screw M4 virtually the length of support.

So it needs to use a M4 tap into the brackets so that the screws drive well:

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I take this opportunity also to tap the 5 hole on the front:

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Here is the equipment to make theese screws ...
Brass screw diameter 4mm, at least 30mm length, and nails used for decoration with head 10mm and indifferent length.

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We have to start by removing the nail of the head

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Then solder the head of the screw in the head of the nail, put enough soldering and testing perpendicularity between head and screw.

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Then, it is necessary to make the strait of the head with diamond disc:

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Where is the new screw?

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Just to finish cut off the screws to the right length:
4 screws with 27 mm
1 screws with 14 mm (head excluded)

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