790 Pcs M3 M4 Screws Set, Countersunk Bolts and Nuts, Flat Head Machine Screw Nu

--Exquisite Material: m3 m4 screws set is made of high-quality carbon steel, exquisite workmanship, not easy to break or deform, high strength, high hardness, corrosion resistance, not easy to rust, durable and stable\n--Cross Countersunk Screws Bolts and Nuts Set: Flat head screw/countersunk screws design, suitable for small areas where the head needs to be flush or below the surface. Deep and clear threads ensure a firm fixation and are not easy to deform and slide during use\n--Practical Design: Equipped with nuts and washers, while protecting the parts, making your installation more precise. m3 m4 nuts and bolts assortment adopts a full thread design, which improves tightness, force balance, and easy operation\n--Wide Range of Uses: Widely used in fixing household appliances, furniture, automobiles, motorcycles and other parts, communication equipment, electromechanical equipment, marine equipment, transportation equipment, construction machinery, etc\n--Package Includes: a total.