Seatbelt Bracket Styles.

This photo clearly shows the differences between a "B" Bend Bracket and an "A" Bend Bracket.    While one can say that there is a "Left Bend" and a "Right Bend",  But Left and Right can be a misnomer and misleading.    You will need to picture how your mounting strategy will use these brackets.  IN my case I chose to use a "B" Bend for both the drivers side belts and an "A" Bend for the passengers side., even though I originally planned to use one of each for both sides.   It was only when I started doing the install that a redirection in my install strategy had to be implimented.
These photos are part of the install of a new aftermarket seatbelt solution  By seatbeltplanet.com