This is the Propeller Shaft Bolt M8*25 12.9 Class Hexagon 6 for the Tirsan Propeller shafts Product Codes: 24882 and 24882
Original bolts can't be used on those propeller shafts.
You will also need a self-locking nut Product Code: 20744
You can use this bolt on the standard propeller shaft on your Lada, it is stronger (12.9 Class compared to the 10.9 Original Lada)
You will need a 6mm Hexahon Key for the installation.