1+ Seatbelt  
2+ Seatbelt buckle  
3+ Seatbelt height adjuster  
4+ Seatbelt slider bar  
5+ Seatbelt slider shield  
6+ Seatbelt slider bezel  
7+ Seatbelt adjust knob  
8+ Seatbelt cap  
9+ Collar nut  
10+ Pin  
11+ Mounting spacer  
12+ Pan head screw  

The part numbers in the assembly image below relate to the product number in the table. Clicking on the part number will open up the relevant part details.