5560PK Spring Nut, Nut Shape U Style Spring Nut, Nut Finish Phosphate, Nut Material Steel, Minimum Panel Thickness 0.8 mm, Maximum Panel Thickness 4 mm, Overall Width 17 mm, Overall Length 25 mm, Hole Center to Outside Edge 14.5 mm, System of Measurement Metric, Thread Size M8-1.25, Cage Finish Phosphate, Cage Material Steel, Clip-On Style U, Color Black, Head Height 14 mm, Package Quantity 25