M8 66 Long Rod Nut Hex Coupling, 2pcs Carbon Steel Hexagonal Sleeve Nut Standoff Threaded Fasteners. 2 Standoff. Design Features: The hex nut adopts the standard hexagonal design, the thread is smooth, beautiful and practical; the surface is smooth and even, and the fixing effect is better; It is not easy to slide when rotating and it is easy to install.
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