Posted by Clint Dixon [172.68.59.174] on Wednesday, December 14, 2016 at 10:00:57 :
In Reply to: why special screws/ posted by scott56 [199.27.128.153] on Tuesday, December 13, 2016 at 18:46:05 :
Based upon the trucks I have owned, Milo and Kaegi are both correct. Some of my early civilian Power-Wagons have had 5/16-14 HHCS with captivated washers, some of my later civilian Power-Wagons have had ACME tread screws. Note that I have owned trucks only from 1947 - 1956 so "early" and "late" are fairly relative.
Of course this doesn't answer your question as to purpose. It may have been a vendor issue. Kind of like why they switched from King-Seeley governors, to Pierce governors, and back again.
Junior
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