【High Strength 12.9 Grade Carbon Steel】Our nuts and bolts are made of strong and durable 12.9 grade carbon steel material, which has the advantages of high hardness, high strength, corrosion resistance, not easy to break, high performance, etc., providing you with long-lasting durability and stability. Performs well in any usage environment.
【Hex Socket Cap Head Screws Bolts and Nuts and Washers】Our bolts and nuts set uses an inner hex head design, which has the advantages of simple construction, good stress performance, removable, and will not loosen under dynamic loads. After installation, it can also ensure the smoothness and beauty of the workpiece surface.
【Equipped with Hex Nuts and Flat Washers】The hexagonal nuts allow you to install more accurately, tighten better, and carry larger loads; the flat washers can increase the contact area, provide strong holding force and maximum clamping force, protect the bolts, and extend the service life.
【Multi-scene Application】Suitable for furniture repair, mechanical instruments, electronic products, household appliances, DIY projects, communication equipment, petrochemical industry, marine power equipment, automobile and ship applications, etc.
【1230 Pcs Hex Socket Head Cap Screws Bolts Nuts】1230 pieces in total, including 30 pcs m2x4mm, 30 pcs m2x8mm, 30 pcs m2x12mm, 30 pcs m2x16mm, 140 pcs m2 nuts, 150 pcs m2 washers; 30 pcs m3x6mm, 30 pcs m3x8mm, 30 pcs m3x12 mm, 30 pcs m3x16mm , 140 pcs m3 nuts, 150 pcs m3 washers; 20 pcs m4x8mm, 20 pcs m4x12mm, 15 pcs m4x16mm, 15 pcs m4x20mm, 80 pcs m4 nuts, 90 pcs m4 washers; 15 pcs m5x8mm, 15 pcs m5x12mm, 1 0 pcs m5x16mm, 10 pcs m5x20mm, 55 pcs m5 nuts, 65 pcs m5 washers.