M5 x 10mm (L) x 7mm (OD) Brass Knurled Threaded Insert Embedment Nuts, 100 X Lab Stoppers Middle Tube Length: 120mm /

Middle Tube Length: 120mm / 4

Outside Diameter: 240mm

Weight: 218g

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M5 x 10mm (L) x 7mm (OD) Brass Knurled Threaded Insert Embedment Nuts, 100 X Lab Stoppers Middle Tube Length: 120mm /Descriptions: 1. Made of brass material, high hardness and durable. Provides good mechanical properties with increased corrosion and heat resistance 2. The knurled insert nut has a guide, so no countersink is required. The surface is smooth, firm and even, and easy to install. 3. It can be installed into a plastic matrix by ultrasound or heat during the injection molding process. 4. Can be widely used in 3D printing injection molding to achieve tight