Enhance your DIY projects with these precision-crafted knurled brass insert nuts. Each pack contains 50 pieces of M4 threaded inserts, featuring a 6mm length and 6mm outer diameter. The knurled exterior design provides excellent grip and prevents rotation once installed, making these nuts ideal for applications requiring secure fastening. The brass construction offers durability and resistance to corrosion, while the M4 internal thread ensures compatibility with standard M4 screws and bolts. Perfect for woodworking, furniture assembly, automotive applications, and various mechanical projects where a reliable threaded connection is essential. The consistent sizing and professional-grade manufacturing make these inserts a dependable choice for both hobbyists and professionals seeking quality fastening solutions.