12.9 Grade Carbon Steel Black Hex Socket Button Head Screw ISO7380 Allen Bolt For RC Model Drone Car 3D Printer M3x6 M3x8 M3x10

⚙️ Premium 12.9 Grade Black Hex Socket Button Head Screw Set🌟 WHY CHOOSE 12.9 GRADE?Ultra-High Tensile: Outperforms standard 8.8/10.9 steel. Extreme industrial durability.Anti-Stripping Design: Deep precision hex socket eliminates stripped screw heads.Professional Finish: Sleek black oxide coating provides matte look and rustproofing.📐 FULL M3 GOLDEN LENGTH SELECTION (SKU)Our multi-attribute listing offers a comprehensive range of high-frequency sizes to cover all your structural and mechanical fastening needs:Short Series: M3x6mm | M3x8mm | M3x10mmMedium Series: M3x12mm | M3x16mm | M3x20mmLong Series: M3x25mm | M3x30mm🛸 TARGET APPLICATIONS (100% PERFECT FIT)Specifically engineered for high-vibration, tight-tolerance, and heavy-duty DIY projects:RC Models: Perfect for FPV racing drones, remote-control cars, trucks, and airplanes.3D Printers: Ideal for Voron, Ender, and custom structural framing/linear rail mounting.Robotics & DIY: Excellent for electronic enclosures, custom machinery, and workshop repair.🔧 TECHNICAL SPECIFICATIONSStandard: ISO7380 (Mushroom Button Head / Low-profile clearance)Material: Industrial Heavy-Duty 12.9 Grade Carbon SteelThread Type: Clean, burr-free threads for seamless engagement with standard M3 nuts.🛒 BUYER NOTICE & PACKAGINGCheck SKU Carefully: Select your required length and quantity combinations from the options.Secure Packing: Safely packed in heavy-duty bags to prevent thread damage during transit.Upgrade your workshop gear today! Choose the ultimate high-tensile hardware for your next high-performance masterpiece.