M14 helical thread kit for redoing fillets lawn machinery lawn tractor lawn mower lawn mower chainsaw brush cutter brush cutter blower motor blower hedge trimmer power generator Briggs Stratton engines workshop equipment 321744 helical 321760 321761 321762 321763 1. HELICOIDAL KIT M14 CODE: 321744 2. HELICOID M14 x 1.25 x 3/8" CODE: 321760 3. HELICOID M14 x 1.25 x 7/16" CODE: 321761 4. ELICOIDE M14 x 1.25 x 3/4" Code: 321762 5. HELICOIDE M14 x 1.25 x 1/2" Code: 321763