M1 M1.4 M1.6 M1.7 Brass Hot Melt Knurled Insert Nuts and Screw set Threaded Embedded Copper Nut Bolt kit for 3D Printer 500 pcs

Head Style：Round High-concerned chemical：None isCustomized：Yes Model Number：M1 M1.4 M1.6 M1.7 DIY Supplies：Metalworking Origin：Mainland China Certification：NONE Item Type：Nut & Bolt Sets

High-concerned chemical: None isCustomized: Yes Model Number: M1 M1.4 M1.6 M1.7 DIY Supplies: Metalworking Origin: Mainland China Certification: NONE Item Type: Nut & Bolt Sets