I'm posting this up because there seems to be an issue with the correct parts to do this job on the MKIV R32. The answers I have found on the web are the SB700 for the front, & the SB1010 for the rear. The SB700 is M7x1.0x35.15, & the stock bleeder is M7x1.0x30. The SB7100S at M7x1.0x30 seems to be a better match. The "S" stands for short. The SB1010 is M10x1.0x34.44, & the stock bleeder is M10x1.0x28. The SB1010S seems to be the better fit at M10x1.0x31.35. All 4 parts should work, but the non-S versions will have more threads outside of the caliper than you may be used to seeing.
Front
Stock = M7x1.0x30
SB7100S = M7x1.0x30
SB7100 = M7x1.0x35
Rear
Stock = M10x1.0x28
SB1010S = M10x1.0x31
SB1010 = M10x1.0x34.5
Front
Stock = M7x1.0x30
SB7100S = M7x1.0x30
SB7100 = M7x1.0x35
Rear
Stock = M10x1.0x28
SB1010S = M10x1.0x31
SB1010 = M10x1.0x34.5