• Premium Brass Construction: Precision engineered for strength, durability, and reliable performance. High-quality brass offers excellent resistance to rust and corrosion for long-lasting reliability.
• Heat Set Optimized Design: Built specifically for thermal insertion into plastic and 3D printed parts. This heat-set ready design creates a strong, permanent hold once installed.
• Advanced Knurled Exterior Grip: Features a sophisticated diamond and straight knurl texture pattern. This strategic diamond knurling significantly increases the surface area, ensuring maximum pull-out resistance.
• Precision Internal Threads: Enjoy clean, consistent machining with precision-machined internal threads. This guarantees smooth fastener engagement and a perfectly secure, precise thread fit for all your metric screws.
• Massive 420-Piece Assortment: This comprehensive kit boasts an incredible 420 total pieces across 15 popular metric sizes. The M2, M3, M4, and M5 series provide multiple diameters and lengths to accommodate different installation needs. It is the ideal assortment for repair, assembly, and prototyping.
• Organized Storage Case: The entire set comes neatly packed in a portable box with a secure snap latch and 15 separate compartments. The clear lid and included size identification chart allow for quick viewing and easy size selection.

4. Specifications

• Product Type: Brass Insert Nuts Kit / Heat Set Threaded Inserts.
• Total Quantity: 420 Pieces.
• Material: Premium Strong and Durable Brass.
• Size Range: M2 to M5 (15 Assorted Sizes).
• Texture Design: Diamond / Straight Knurl Exterior.
• Applications: Metric heat set inserts for plastic installation and 3D printed parts.

What's in the box
1 x Storage Organizer Box
420 x Brass Heat Set Insert Nuts