Last year, I was air blast spraying the orchard, got out of position when turning and caught the spayer head on a three inch tree branch. Broke the head right off the machine. Imovable object meets iresistable force.
OK, I've been rebuilding this for the last several days. I made the mating surface from the air fan to the head two flat plates with eight
1/4" bolts holes around the outside of the duct. I want this to be the weak spot this time. Steel, even grade 1, is too much, I guess. Page 3042 of Mcmaster Carr has these plastic boltsCould anybody give me an estmate of the relative strength of nylon, polycarbonate, and PTFE, to grade 1 steel in 1/4" bolts? other considerations on best shear bolts? Other material choices?
Karl