Home Aircraft Parts LW-31SS-1.75 LYCOMING BOLT-.3125-18 X 1.75 LONG HEX LW-31SS-1.75 LYCOMING BOLT-.3125-18 X 1.75 LONG HEX LW31SS1.75 SKU: LW-31SS-1.75 Categories: Aircraft Parts, Engine Parts, Hardware, Lycoming Tag: bolt