The nuts are CNC milled from 7075 T6 Al.
Package weight (4x nut + 4x torx screw T30) is 13 g.
Compatibility:
ABDACOVER91BK black - for Dura Ace 9100 & 9150 Di2
ABDACOVER91GR gray - for Dura Ace 9100 & 9150 Di2
ABDACOVERBK black - for Dura Ace 9000 (also compatible with Rotor converters)
ABULTCOVER80BK black - for Ultegra 8000 & 8050 Di2
ABULTCOVER80GR gray - for Ultegra 8000 & 8050 Di2
ABULTCOVERGR gray - for Ultegra 6800 (also compatible with Rotor converters)
ABULTCOVERBK gray - for Ultegra 6800 (also compatible with Rotor converters)
Product ID: 14637