Dowel Pins/Cotter Pin. ● Screw Size:M3 M4 M5 M6. ● Thread Pitch: M3:0.5mm; M4:0.7mm; M5:0.8mm; M6:1.0mm. Shaft Coupling. Aluminum Rivet. ● 【High Quality 】: Our Hexahedron Square Nut are made from Aluminum Alloy, which provides excellent corrosion resistance and rust prevention, ensuring long-lasting durability.
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