Manufacturer Part Number: ALHA-4-G|Knob Type|LobedType|Knob Material|AluminumNumber of Points|4Head Diameter (mm)|Head Diameter (Inch)|2Head Diameter (Decimal Inch)|2.0000Head Height (mm)|Head Height (Inch)|Head Height (Decimal Inch)|Stem Size|5/16-18Thread Length (Inch)|3Thread Length (Decimal Inch)|3.0000Thread Length (mm)|Material Grade|6063-T5Top Hole Size (mm)|Top Hole Size|Spoke Diameter|Hole Size|Hole Depth (Inch)|Hole Depth (mm)|Hole Depth (Decimal Inch)|Hub Diameter (Inch)|Hub Diameter (Decimal Inch)|Hub Diameter (mm)|Hub Height (Decimal Inch)|Hub Height (mm)|Hub Height (Inch)|Overall Height (Inch)|Overall Height (Mm - 5 Decimals)|Overall Height (Decimal Inch)|Finish|Screw Length (mm)|Color|Set Screw Size|Head Thickness|Overall Length (Inch)|Thread Size|Length Under Head (Decimal Inch)|Product Service Code|5340UNSPSC Code|31162801