M2 M3 M4 M5 Bolts and nuts set includes:945pcs M2 M3 M4 M5 screws in different sizes and specifications, with matching nuts and washers to meet the needs of different people. Nuts and washers extend the contact surface and reduce pressure to protect screws and parts. M2 M3 M4 M5 Material: The small M2 M3 M4 M5 screw set carbon steel is made of 12.9 grade carbon steel, which is much harder than stainless steel. Black surface treatment, corrosion resistant, acid and alkali resistant and high hardness. Easy to use: the nut can extend the contact surface, reduce pressure and protect the screw and parts. The hexagonal steel thread is even, smooth and firm, does not easily deform and slide during the working process and fits perfectly with the nut Hex screws package: all screws and nuts are packed in durable and sturdy plastic boxes to prevent screws from being scattered or lost during use. The screws come with 4 piece wrenches also known as Allen key that perfectly match our M2 M3 M4 M7 screws. Wide applications: lens head hexagon socket screws are suitable for door handles,lamps, buttons, locks and toys, plumbers and other smaller repairs in shops, around the house; and various precision machines, sorting instruments, electronic products, household appliances, 3D printer components, industrial machinery, automotive industry, construction, intelligent devices Premium Black Carbon Steel Hex Socket Head Cap Screws and Nuts Washers Set – M2, M3, M4, M5 (Metric Sizes) Bolts and Nuts Key Features:
✅ High-Strength Material – Made of durable carbon steel with a black oxide coating for corrosion resistance and a sleek finish.
✅ Precision Machined – DIN912 compliant, with accurate thread pitch and hex socket for a secure fit with Allen wrenches.
✅ Wide Compatibility – Metric sizes (M2, M3, M4, M5) fit most machinery, electronics, automotive, and DIY projects.
✅ Internal Hex Drive – Hex socket head (Allen head) design allows for flush mounting and high torque application.
✅ Versatile Use – Ideal for 3D printers, CNC machines, bicycles, motorcycles, furniture assembly, and metal/wood/plastic projects.