Pickup Screws attracts metal? normal?

[maturanesa]

The screws just attracts the screwdriver every time i use it. I believe thats because the electric charge of the magnets inside the pickup, and want to believe the screws dont have any charge by themselves. This are closed (bart pup), time ago a got another pickups exposed (di marzio), and did the same
But anyway, can that result in any problem ?

[Gord_oh]

no. its third grade 101.
magnet poles from the pups are magnitizing your screws.
not a problems, most pickups screws do that. everything i have worked with anyway.
makes it easier to remove them with a screwdriver too.

[SGD Lutherie]

These kind of pickups work because they have magnets in them, so they will attract and magnetize steel objects that get close too them, such as screw drivers and your strings.

[BigOldHarry]

This is completely normal. Like Gord Oh said - this is grade-school physics (ferrous metal in the presence of a magnetic field, etc)

[maturanesa]

Originally Posted by SGD Lutherie

These kind of pickups work because they have magnets in them, so they will attract and magnetize steel objects that get close too them, such as screw drivers and your strings.

Thats right! But the question i tried to ask is more about that:

if the magnet field of the pickup is attracting another another object but the string, like screws, will that change something in the magnet properties?

[SGD Lutherie]

Originally Posted by maturanesa

Thats right! But the question i tried to ask is more about that:

if the magnet field of the pickup is attracting another another object but the string, like screws, will that change something in the magnet properties?

Yes, it will. How much and what the effect will be depends on the pickup. For pickups with rod magnet poles, if you stick a piece of steel on them, like the plate on the bottom of a Tele pickup, it increases the inductance and makes the pickup louder and changes the tone.

For something like a humbucker, having steel stuck between the pickup's top north and south poles will "short" out the magnetic circuit and reduce the output.

Now for something like a Music Man pickup with alnico poles, you can stick a steel plate to bridge each coil's magnets, and that will increase the output slightly and might give you more low end.

[BigOldHarry]

Originally Posted by SGD Lutherie

Yes, it will. How much and what the effect will be depends on the pickup. For pickups with rod magnet poles, if you stick a piece of steel on them, like the plate on the bottom of a Tele pickup, it increases the inductance and makes the pickup louder and changes the tone.

For something like a humbucker, having steel stuck between the pickup's top north and south poles will "short" out the magnetic circuit and reduce the output.

Now for something like a Music Man pickup with alnico poles, you can stick a steel plate to bridge each coil's magnets, and that will increase the output slightly and might give you more low end.

You know, I have a vague memory of players, back in the 70's, doing tricks with their pickups like this - putting pieces of metal behind or in front of them... All in the theory that this will improve the sound/output/etc. Funny.

But to the OP: the mounting screws are sufficiently small and will have a sufficiently weak magnetic field that any interference would be trivial at most.

[maturanesa]

Originally Posted by SGD Lutherie

Yes, it will. How much and what the effect will be depends on the pickup. For pickups with rod magnet poles, if you stick a piece of steel on them, like the plate on the bottom of a Tele pickup, it increases the inductance and makes the pickup louder and changes the tone.

For something like a humbucker, having steel stuck between the pickup's top north and south poles will "short" out the magnetic circuit and reduce the output.

Now for something like a Music Man pickup with alnico poles, you can stick a steel plate to bridge each coil's magnets, and that will increase the output slightly and might give you more low end.

well, if the effect of external metals is loudness, an increase in lows and they dont miss the pickup its kinda positive...I dont remember if plate is a ferromagnetic. anyway, when i asked i was thinking in the possibility of negative result like less output, a more dirty signal or just messing the magnet strength