If you have ever had a timer plate stud (stand off) break off in the gear cover, then you can realize the importance of a high quality pair. These are machined from 17-4 high-strength stainless steel and are undeniably the very best available. Go ahead and look up 17-4 stainless steel if you're not sure about its material properties. The unthreaded section of the stand-off measures .700". The threaded section measures .440" with an 8-32 thread pitch. Fits 1970-1999 Harley Shovelhead/EVO Big Twin & 1971-2003 Sportster Ironhead/Evolution Replaces HD# 32606-82 SOLD AS A PAIR