Knurled Thumb Nut Stainless Steels M3 M4 M5 M6 M8 Step Nuts for Bolts 8 Grade

M4 x D10 x H7 mm Through Hole、M4 x D13 x H9 mm Through Hole、M4 x D16 x H10 mm Through Hole. Material Stainless Steels. M4 x D13 x H9 mm Blind Hole、M4 x D16 x H10 mm Blind Hole. M8 x D19 x H12 mm Through Hole.

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