Model: GB806. 1Pcs, 2Pcs, 5Pcs, 10Pcs High Type Knurled Thumb Nut(based on your choice). Optional Style: 10pcs M3 3 11, 10pcs M4 4 12, 5pcs M5 5 16, 5pcs M6 6 20, 2pcs M8 8 24, 1pcs M10 10 30. This nut is screwed together with a bolt or screw for fastening.
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