Split Pin/Cotter Pin (5x65mm) - for 1600/2002/2002tii & 320i replacement of rear wheel bearings. I used to order Germany ones through Wurth that were a litte longer than the 45mm length BMW sells to make sure I had a bit extra to work with when bending them over.
$.45 each or purchase the 100pc LOT for $30.00 ($.30 each)