Briggs & Stratton snowblower shear bolt kit. 1/4-20 x 1 3/4". Shear bolts are designed to break in half if the auger strikes a hard object to prevent damage to the transmission and engine. If the shear bolt is broken, the auger won’t be able to turn.
Snowblower skid shoe. Skid shoes prevent the auger from scraping the ground by creating a gap between the bottom of the snowblower and the ground.