1845 Pcs Machine Screw Assortment Kit, Hex Button Head Cap Bolts And Nuts Kit ?Comprehensive Nut and Bolt Set?This is a comprehensive metric screw kit of 1845 metric bolts, nuts and lock washers in M2 M3 M4 M5 sizes. This kit also includes 4 hex wrenches, 1 tweezer, catering to diverse fastening needs. ?Premium Alloy Steel?Crafted from premium 10.9 alloy steel, our socket head screws offer exceptional rust and oxidation resistance. Each screw undergoes special treatment for optimal condition. Complimentary red steel paper fiber washers are included, offering elasticity and insulation for expanded applications. ?Button Head Hex Socket Cap ?The thread of the hex socket head cap screw is uniform, smooth and tight, the pitch is uniform, the lines are clear, the use is balanced, the fastening effect is good, and it is not easy to deform and slide during the working process, making the work more efficient. ?Portable Package?All metric screws are packed in a clear box, clear label paper is pasted on the outer cover, Arranged by size, you can easily store and find the size you need. ?Widely used? Appliance Repair, Refrigerator TV Microwave Oven 3D Printer DIY Furniture Installation Toy Repair Car Repair Bicycle, Lamp Repair Dismantling and assembling usually require the use of various types of screws. Therefore, we have prepared different sizes and lengths for you, once purchased can be used many times, for you to save your heart, time and labor!