1. Made of 304 stainless steel, rust-resistant, durable, and long-lasting. 2. Function: these screws are ideal for use in confined areas beneath surfaces. 3. Sharp threads allow for cutting into soft metal sheets, plastics, or wood. 4. Well-packaged in a resealable, transparent box for easy storage and portability. 5. Widely used in the energy, electronics, electrical appliances, machinery, chemicals, metallurgy, molds, hydraulics, and other industries. 6. Application: joint reinforcement. 7. Applicable industries: construction, general equipment manufacturing, electronics. 8. Available in eight common lengths: M2x4 mm / M2x5 mm / M2x6 mm / M2x8 mm / M2x10 mm / M2x12 mm / M2x16mm / M2x20mm 9. 8 sizes, 100 yards each, to meet your daily needs