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 - size: M3 2440Pcs 4-35mm

About this item

• 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-spec’d screws.
• Dual-Label System — Find the Right Size in Seconds Clear storage case with both inside & outside size labels: Outside labels → Identify each compartment’s 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 7.7×5.5×1.5 inch — fits easily in toolboxes, drawers, and backpacks
• 【Brand guarantee】Kadrick 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.

Overview

• Size: M3 2440Pcs 4-35mm
• Color: Black
• Material: Alloy Steel
• Brand: Kadrick
• Item dimensions L x W x H: 7.7 x 5.5 x 1.5 inches