【Product details】- This M3 screw assortment kit comes with 720 pieces, including 180pcs M3 bolts, 180pcs hex nuts, 180pcs flat washers, 180pcs spring washers, and 1 mini wrench. This complete M3 screw set is ideal for 3D printers, electronics, RC models, DIY repairs, and CNC machinery. 【Standardized Metric Sizes】 -The m3 hex socket head cap screws assortment kit come with 8 commonly used lengths—M3-0.5 x 6mm, 8mm, 10mm, 12mm, 16mm,20mm,25mm,30mm,M3 bolt pitch 0.5 mm-ideal for routine installations and repairs. They meet standard metric specs, the average error is less than 0.01mm. 【304 Stainless Steel Material 】 M3 bolts and nuts assorted kit are made of high-quality 304 stainless steel, which resist corrosion and rust, with smooth threads and high hardness for secure fastening, heavy-load capacity, and long-term use in all conditions. 【Organized Storage Box 】- The 3mm screws set comes in a compartmentalized case with clear labels for quick access to bolts, washers, and nuts. Keeps your workspace tidy and speeds up project progress, making every job smoother. 【Wide Applications】Keep a set of commonly used fgruh screw hardware set at hand. Whether you are working on DIY projects, bicycle repairs, or professional construction, it can meet your needs at any time, making your work more convenient and efficient. 【Product details】- This M3 screw assortment kit comes with 720 pieces, including 180pcs M3 bolts, 180pcs hex nuts, 180pcs flat washers, 180pcs spring washers, and 1 mini wrench. This complete M3 screw set is ideal for 3D printers, electronics, RC models, DIY repairs, and CNC machinery. 【Standardized Metric Sizes】 -The m3 hex socket head cap screws assortment kit come with 8 commonly used lengths—M3-0.5 x 6mm, 8mm, 10mm, 12mm, 16mm,20mm,25mm,30mm,M3 bolt pitch 0.5 mm-ideal for routine installations and repairs. They meet standard metric specs, the average error is less than 0.01mm. 【304 Stainless Steel Material 】 M3 bolts and nuts assorted kit are made of high-quality 304 stainless steel, which resist corrosion and rust, with smooth threads and high hardness for secure fastening, heavy-load capacity, and long-term use in all conditions. 【Organized Storage Box 】- The 3mm screws set comes in a compartmentalized case with clear labels for quick access to bolts, washers, and nuts. Keeps your workspace tidy and speeds up project progress, making every job smoother. 【Wide Applications】Keep a set of commonly used fgruh screw hardware set at hand. Whether you are working on DIY projects, bicycle repairs, or professional construction, it can meet your needs at any time, making your work more convenient and efficient.