M3 x 5mm(L) x 5.4mm(OD) Female Thread Brass Knurled Threaded Insert Embedment Nuts, 150 Pcs 3mm(ID)x5mm(OD)x500mm(L) Port 1 2 3 Outer

Port 1 2 3 Outer DIameter: 3mm

Also be sure to cut along the suggested line evenly so there is room for a proper connection on each side

PE material is atoxic and corrosion resistant

and DIY project

for Saturn LS 2000

M3 x 5mm(L) x 5.4mm(OD) Female Thread Brass Knurled Threaded Insert Embedment Nuts, 150 Pcs 3mm(ID)x5mm(OD)x500mm(L) Port 1 2 3 OuterDescriptions: Made of brass material, high hardness and durable. Provides good mechanical properties with increased corrosion and heat resistance The knurled insert nut has a guide, so no countersink is required. The surface is smooth, firm and even, and easy to install. It can be installed into a plastic matrix by ultrasound or heat during the injection molding process. Can be widely used in 3D printing injection molding to achieve tight fixation.