Velobuild Integrated Stem clamp hardware

[NoGrip61]

Does anyone know what these fasteners are called in stem portion that clamp to the fork, and where I can get a new set, other than VB?  Mine are stripped out, and would like something of higher quality.  TIA

[coffeebreak]

I don't have integrated bars but those screws look similar to what I use on my VB GF002's stem.
https://www.aliexpress.us/item/3256805538634289.html

Titanium, I use these same brand (Wanyifa) screws elsewhere on other bikes too and they are fantastic.