If you need just one or two screws today, try these types of locations: Where to buy small machine screws? - Facebook
: A top choice for high-precision metric components and "AccuPro" express delivery.
: The industry gold standard for engineers; they carry almost every size imaginable and offer CAD files for verification.
Specialty sites often carry "micro" sizes (like M1 to M3) that big-box stores typically lack.
: Highly recommended for hobbyists and electronics, offering specialized assortments and samples.
