<html><head></head><body><div class="yahoo-style-wrap" style="font-family:times new roman, new york, times, serif;font-size:16px;"><div dir="ltr" data-setdir="false">Here is one for you Healey fastener buffs. I installed the rocker assembly to the BN2 engine tonight. Before I started, I found that I had two complete sets of studs, nuts and washers to install on the head. Finally getting to torque the pedestal nuts down I was surprised to find two of the nuts were a different size than the other six. Let me back up a bit. I was surprised to find BSF threaded nuts with flats that fit a 9/16ths socket. The two different nuts would only fit a BSF/Whitworth socket. So, I took out the other set of nuts and washers and found they all fit the BSF/Whitworth socket. In the name of uniformity I used the BSF sized nuts on all the pedestal studs. Just seems kind of crazy a nut that only fit a 9/16ths socket would have BSF threads. What's up with that?</div><div dir="ltr" data-setdir="false">Mike MacLean<br></div></div></body></html>