T-Nut 20×20 M4 Slide Features : High quality carbon steel, moisture resistance, oxidation resistance, corrosion resistance, healthy and lead-free. High hardness, twice as hard as copper. Dimension：10 x 10 x 5mm(L*W*T)， Slot Width: 6mm，Thread diameter: M4 Pre installed in 20mm series aluminum profile Suitable for 3d printer aluminum framing ,2020 2040 2060 2080 aluminum extrusions For More 3D Printer Mechanical parts
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