Kadrick 2440PCS M3 Screws Assortment,Hex Socket Cap & Countersunk M3 Screws | M3 Bolts With Nuts,Flat & Lock Washerss, Length From 4-35mm,Class 12.9 & 4.8 Alloy Steel,Black Zinc Plated

Features

• 2440-Piece Complete Kit 2 Head Types 9 Sizes 18 Variations Hex socket cap head 9 sizes + Phillips flat head 9 sizes, giving you 18 unique screw variations. Includes hex nuts, flat washers, lock washers, and a hex allen wrench. Covers 4/6/8/10/12/16/20/25/30mm lengths. One kit for all your DIY needs 3D printers, RC cars, drones, laptops, electronics, and furniture repairs.
• Dual-Grade Configuration The Right Strength for Each Job Hex socket cap screws are made from Class 12.9 alloy steel , HRC 39-44 hardness built for high-torque mechanical fastening where strength matters most. Phillips flat head screws are made from Class 4.8 alloy steel perfectly adequate for everyday DIY assembly with common tools. Precision rolled threads ensure consistent fit across all sizes. Two grades, each serving its purpose no over-engineering, no compromise.
• Two Head Types Two Grades Purpose-Matched for Every Scenario Hex Socket Cap (12.9 Grade) High strength for 3D printers, RC cars, drones, and other applications requiring secure, vibration-resistant fastening. Phillips Flat Head (4.8 Grade) Standard strength for furniture assembly, electronics, panel mounting, and quick everyday fixes. One kit, two optimized configurations no overpaying for unnecessary strength, no worrying about under-specd screws.
• Dual-Label System Find the Right Size in Seconds Clear storage case with both inside & outside size labels: Outside labels Identify each compartments content at a glance without opening Inside labels Each compartment individually marked. Even if dividers shift during shipping and screws get mixed, you can instantly identify every size 12 individual compartments with crystal-clear transparent case Compact 7.75.51.5 inch fits easily in toolboxes, drawers, and backpacks
• Brand guaranteeKadrick specializes in the production and development of fasteners. Our products have undergone rigorous testing, so you can use them with confidence. Additionally, we provide a 24-month after-sales warranty service. If you have any questions, please feel free to contact us.