Guitar building - Nut comparison, plastic and brass

Will intalling adjustible nuta bit inclind would help???

well done. a video with evidence, answers and clear conclusions. Maybe the sharp corners of the string slots cause the buzz, and could be filed away?

The brass nut buzzes because it has no slope on it like a regular nut. They should not make the screw perpendicular but rather make it so it slopes back towards the headstock a little but it would probably cut the string quickly so they don't do that.

My brand new malmsteen strat nut also buzz, replace it with another original brand new fender brass nut fixed the buzz problem. The store told all guitar are QC passed from the factory and they do not responsible for it, what' s going on

I use a stationary brass nut in one of my guitars and there's no buzzing. It just needs to be filed at an angle like any other nut. There's not a significant audible difference, but I think the brass has more sustain and brings out some of the harmonic overtones better than plastic or bone, and it is obviously more durable. The downside is that cutting and filing it is more difficult than a softer material, that's just a temporary inconvenience. I like it, particularly for overly dark or muddy sounding instruments. It will help it sound more open and resonant.

Per the buzz with the brass nut…. Talk with a piano tech about the “ relief angle” cut into a piano bridge… this “ escaping angle” considers how much the string travels up and down and how much down pressure the MAPLE BRIDGE can tolerate before the string will dent the bridge… the buzzing might not be due to the “ brass” material… the buzzing MIGHT be due to a different slot cutting technique as well a possible a different relief angle.
Again a piano tuner / rebuilder with a LOT of experience in piano bridge and agraffe ( the opposite end… which IS BRASS) … those guys have the experience and the training and the tools to talk about string to brass termination points .
BIG NOTE… the FIRST STEP.. in getting better tone out of your piano ( after a good tuning)
making sure ALL parts are right and secure… then we ( I was a piano tuner) used “ levers” and “ spoons” to message the string DOWN onto the bridge and at the other end , UP AGAINST THE “CAPO” bar or into the Agraffe seat. STRONG POSITIVE SEATING.
And buzzing at the agraffe was not rare. We would first try to re-message the string back into its seat in the agraffe… or we would have to replace the agraffe as the pressure from the string eventually would flatten the termination “point”.
The brass nut shouldn’t buzz… something else is going on.