Morgan state 170 lbs/ft, Phil Bleazey uses 440 lbs/ft, which I believe is based on the specified torque for a 7/8 UNF nut. Note though Morgan only use a half nut whereas Phil uses a full nut.

2021 M3W
2013 M3W - Sold
1971 4/4 2 Seater
1934 Sports