uxcell M3x20mm Flat Head Machine Screws Inner Hex Screw 304 Stainless Steel Fasteners Bolts 40Pcs

Assuming you have Prime, these come on W3dnesday for 7$ USD: https://www.amazon.com/uxcell-M3x20mm-Machine-Stainless-Fasteners/dp/B07WCTB4NM?source=ps-sl-shoppingads-lpcontext&ref_=fplfs&psc=1&smid=A30WUG2ZDGM0XM