Having stripped/broken some of those pins or bolts myself I will argue that they should be set with a hammer and punch and kept from falling out with the lock washer and nut, not pulled home with. Same goes for king pin lock bolts.

Grigg

•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
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"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-