710PCS M3 Screw Assortment Kit, M3x6/8/10/12/16/20/25/30mm M3 Screw Kits, 10.9 Grade Alloy Steel Metric Hex Button Head Cap Screws, Nuts and Flat Washers, Black Zinc Plated Screw Set for 3D Printing

Additional Details from the Manufacturer

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• 【710PCS M3 Screw Kits 8 Length Options】: M3 Screw Assortment Kit including 8 versatile lengths: M3x6mm, M3x8mm, M3x10mm, M3x12mm, M3x16mm, M3x20mm, M3x25mm, M3x30mm. Metric screw assortment kit contains M3 screws, nuts, washers and corresponding 1 hexagonal wrenches. Tailored for complex projects requiring multiple fastening solutions.
• 【Precision Engineering for Flawless Fit】: Every screw adheres to metric standards with ±0.01mm tolerance, guaranteeing seamless compatibility with machinery, 3D printers, and DIY projects. Threads are laser-cut for smooth engagement, while nuts fit snugly without wobbling—saving time and reducing stripped threads.
• 【10.9 Grade Alloy Steel with Advanced Anti-Corrosion】:Crafted from high-strength 10.9-grade alloy steel, our screws are engineered for superior durability and fatigue resistance. The zinc-plated surface ensures oil-free, rust-proof protection, ideal for both indoor and outdoor applications. Our screws balance hardness and toughness, preventing brittleness in high-stress scenarios (eg：automotive or machinery repairs).
• 【Organized Storage & Professional-Grade Convenience】: Packed in a labeled, compartmentalized plastic case, each size is clearly marked for instant access. The reusable container doubles as a portable toolkit—perfect for technicians, hobbyists, or as a thoughtful gift. In order to better preservation, we also deliberately coated with a small amount of antirust oil, effective rust prevention at the same time more prolong the service life of the fasteners.
• 【 Effortless for Pros, Perfect for DIYers】:Install in seconds: Use the included hex wrench to tighten screws, add lock washers for anti-loosening, and disassemble with a simple reverse twist.Good assortment to have on hand for 3D printing DIY, RC hobbies, furniture, car repair and bike stand etc.