Whats the difference shear pin or bolt? You never pulled a hay baler with a fist full of 1/4x20 bolts under the tractor seat to replace broke shears. Use a 5 grade bolt and if your really worried use brass. The shears made to break before the equipment and you'll find them called shear pins and shear bolts. Do a web search on shear pin vs screw, lots of info.
Both sides of my prior 5th had bolts on the front landing gear from the factory, motor to shaft, that fell out when the nuts came off. I replaced them with the self locking nuts and never had another problem
2000 F250SD SRW 7.3 Long Bed Extended Cab Air Bags
2014 Eagle 30.5BHLT
2007 Layton 245LF (sold)
196? Shasta 16ft
Learn from others mistakes, you'll never live long enough to make them all yourself.