1710 Pcs M2 M3 M4 M5 Nuts And Bolts Assortment Kit, Pan Head Machine Screws And What are the advantages of our m2 m3 m4 m5 assorted screws nuts and bolts? Fine Material: M2 m3 m4 m5 machine screw assortment kit is made of high-quality stainless steel, with high hardness, strong stability, not easy to break or deform, corrosion-resistant, can provide high performance in any environment, durable Hex Button Head Socket Cap Screws and Nuts Kit: Button head socket cap screws design, can withstand greater loads. The thread is clear the force is evenly distributed, and it can be easily assembled and disassembled with the equipped hex wrench Equipped with Hex Nuts and Washers: Hex nuts can make your installation more precise, fasten better, and carry larger loads; flat washers can increase the contact area, protect the bolts, provide strong holding force and maximum clamping tight force Widely Used: Suitable for assembly, maintenance and DIY work in offices, factories, workshops, machinery, communication, electromechanical, marine, household appliances, engineering machinery, automobiles, motorcycles, etc Package Includes: 1710 pieces in total, including M2 x 8mm/12mm/16mm/20mm, M3 x 8mm/12mm/16mm/20mm, M4 x 8mm/12mm/16mm/20mm, M5 x 8mm/12mm/16mm/20mm, and nuts and washers of corresponding sizes, m2 m3 m4 m5 hex wrench, to meet daily use needs