Manufacturer Part Number: 8NC50/EMT|Knob Type|StarType|Knob Material|AluminumNumber of Points|5Head Diameter (mm)|40.00Head Diameter (Inch)|Head Diameter (Decimal Inch)|1.5700Head Height (mm)|Head Height (Inch)|Head Height (Decimal Inch)|Stem Size|M8Thread Length (Inch)|Thread Length (Decimal Inch)|0.5100Thread Length (mm)|Material Grade|Top Hole Size (mm)|Top Hole Size|Spoke Diameter|Hole Size|M8Hole Depth (Inch)|Hole Depth (mm)|Hole Depth (Decimal Inch)|0.5100Hub Diameter (Inch)|Hub Diameter (Decimal Inch)|0.9800Hub Diameter (mm)|Hub Height (Decimal Inch)|0.5900Hub Height (mm)|Hub Height (Inch)|Overall Height (Inch)|Overall Height (Mm - 5 Decimals)|Overall Height (Decimal Inch)|0.4900Finish|Matte; Tumble; PolishedScrew Length (mm)|Color|Set Screw Size|M8Head Thickness|Overall Length (Inch)|Thread Size|M8Length Under Head (Decimal Inch)|Product Service Code|5340UNSPSC Code|31162801