Threaded Brass Inserts for 3D Printing Projects 300pcs Assortment Kit – 50pcs of Each Size (M2–M6) Strengthen and extend the life of your 3D printed parts with this 300-piece Threaded Brass Insert assortment, designed to deliver strong, reliable, and professional-grade threaded connections. This comprehensive kit includes 50 inserts of each size, making it ideal for makers, engineers, and professionals working across a wide range of 3D printing applications. A durable alternative to captive nuts, these brass inserts melt securely into printed parts, improving load distribution and reducing wear from repeated assembly and disassembly. Key Features High-Quality Brass Construction Durable Brass MaterialManufactured from high-quality brass for dependable performance and long-lasting threaded connections. Corrosion ResistantBrass naturally resists corrosion, making these inserts suitable for long-term use in both indoor and outdoor environments. Strong Bond Design Tapered Shape with FinsThe tapered profile and integrated fins allow the insert to melt securely into place using a soldering iron, helping to prevent pull-out. Enhanced StabilityDesigned to distribute stress evenly, improving the structural integrity of 3D printed components. Versatile and Practical Solution Professional Alternative to Captive NutsDelivers a cleaner, more reliable threaded connection for 3D printed assemblies. Time and Cost EfficientAllows individual parts to be reprinted without replacing hardware, reducing material waste and rework. Easy Installation Simple Melt-In MethodInsert into slightly undersized printed holes and melt into place using a soldering iron. Quick SetupStraightforward installation helps streamline assembly and prototyping workflows. Assortment Size Breakdown (300pcs Total) This kit includes 50 pieces of each size, covering a broad range of common 3D printing requirements: M2 – 3mm Length, 3.5mm Outer Diameter M2.5 – 3.5mm Length, 3.5mm Outer Diameter M3 – 4mm Length, 4.5mm Outer Diameter M4 – 4mm Length, 6mm Outer Diameter M5 – 5mm Length, 7mm Outer Diameter M6 – 5mm Length, 8mm Outer Diameter Each size is engineered for a precise fit, ensuring dependable threading in compatible printed holes. Product Specifications Specification Details Material High-Quality Brass Type Threaded Brass Insert Functionality Strong, reliable threaded connections Compatibility Suitable for 3D printed parts with threaded requirements Installation Method Melt in place using a soldering iron Durability High abrasion and corrosion resistance Total Quantity 300 pcs (50 pcs per size) Ideal Applications 3D Printing & DIY Custom 3D printed assemblies Prototyping and functional parts Electronics enclosures and housings Industrial & Engineering Use Machinery components Automotive-related projects Structural and experimental assemblies Crafting & Modeling Model making and precision builds Jewelry projects requiring threaded connections Why Choose This 300pcs Assortment? Covers multiple thread sizes in one convenient kit Durable brass construction for long-term performance Strong melt-in bond reduces pull-out risk Professional, clean alternative to captive nuts Ideal for repeated assembly and disassembly Package Includes 300 × Threaded Brass Inserts Total 50 × M2 50 × M2.5 50 × M3 50 × M4 50 × M5 50 × M6 Upgrade Your 3D Printing Projects with Confidence This 300-piece Threaded Brass Insert assortment provides the strength, versatility, and reliability needed for high-quality 3D printed assemblies. Whether you’re prototyping, repairing, or building production-ready parts, this kit delivers consistent, professional results every time.