Home Aircraft Parts LW-31H1.31 LYCOMING BOLT-.3125-18 X 1.31 LONG HX D LW-31H1.31 LYCOMING BOLT-.3125-18 X 1.31 LONG HX D LW31H1.31 SKU: LW-31H1.31 Categories: Aircraft Parts, Engine Parts, Hardware, Lycoming Tag: bolt