Need some small rivets for DIY projects? This pack of 200 aluminum flat head semi-tubular rivets is handy to have around. They're size M3, which means a diameter of about 0.12 inches (3mm) and a height of 0.20 inches (5mm). The flat head sits flush against surfaces, and the semi-tubular design makes them easier to set than solid rivets—they require less force to clinch. Great for fastening leather, fabric, plastic, rubber, or thin metals in crafts, repairs, or small assemblies. They're silver-toned aluminum, so they're lightweight and corrosion-resistant. You can use them with a hand rivet tool or a small press. Perfect for making or fixing bags, belts, straps, costumes, or model projects. Comes in a resealable bag to keep them organized. A basic, affordable fastener for hobbyists and makers.