uxcell Metric M8x1.25mm Nylon Hexagon Fastener Hex Full Nuts Black 25pcs Product Name: Hex Nut; Material: Nylon Weight: 17g; Package Content: 25 x Hex Nuts Thread Dia: M8/6.9mm(Part D Size); Main Color: Black Thickness (m ): 6mm/0.24"; Width Across Flats ( S): 13mm/0.5" Pitch: 1.25mm