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🔧 Screw it right, screw it tight — the pro’s choice for flawless DIY finesse!
The KADRICK 400PCS M3 Screw Assortment Kit offers 400 high-strength, Grade 12.9 alloy steel screws and nuts with black zinc plating for superior rust resistance and clean handling. Designed for small DIY projects like 3D printing and RC cars, the hex socket head cap screws allow easy hand operation without tools. All components come neatly organized in a durable plastic storage box, backed by a 24-month warranty for confident, professional-grade performance.







| ASIN | B0B51BFSWZ |
| Best Sellers Rank | #6,123 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #18 in Screw & Bolt Assortment Sets |
| Brand | Kadrick |
| Color | Black |
| Compatible Groove Diameter | 3 millimeters |
| Customer Reviews | 4.7 out of 5 stars 1,602 Reviews |
| Fastener Type | Cap, Hex |
| Finish Types | Black Zinc Plated |
| Item Diameter | 3 millimeters |
| Item Dimensions | 6 x 3 x 1 inches |
| Item Highlight | M3 Screw & Nut Kit,12.9 Grade Alloy Steel, Black Zinc Plated, Ideal for 3D Printing, DIY, RC & Electronics,1 Allen Wrench |
| Item Shape | Hexagonal |
| Item dimensions L x W x H | 6 x 3 x 1 inches |
| Manufacturer | Kadrick |
| Material | Alloy Steel |
| Material Type | Alloy Steel |
| Model | m3 |
| Number Of Items | 400 |
| Number of Pieces | 400 |
| Outside Diameter | 3 millimeters |
| Part Number | FB-M3-400-BH-0003 |
| Screw Head Style | Socket Cap |
| Set Name | M3 Screw and Nut Assortment |
| Size | M3 400Pcs |
| Size Name | M3 400Pcs |
| Thread Size | M3 |
| UPC | 716035478782 |
| Unit Count | 1 Count |
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