Genuine LiftMaster 41ASWG-1085SA ribbed neck bolt for the LA100 linear actuator swing gate operator.
Fitment: LiftMaster LA100 and GA200D linear actuator arm operators. The ribbed neck stops the bolt turning in the bracket as the nut is tightened, so a plain bolt is not a substitute.
Sold individually. Replace when the ribs are rounded off or the bolt is bent.