This is a Replacement Screw Set for the OS FT-240 and FT-300 Twin / Cylinder 4-stroke Engines. / / INCLUDES: Six 4 x 25mm socket head screws (w/15mm of threads) - these / are the long screws that attach the cylinder heads to the engine / Four 4 x 18mm socket head screws - these are the short screws that / attach the cylinder heads to the engine / Eight 4 x 12mm socket head screws - these are the screws that / attach the cylinder jackets to the crankcase / Four 2.5 x 12mm socket head screws - these are the screws that / attach the rocker covers to the cylinder heads. / Two 3 x 17mm socket head screws (w/13mm of threads) - these are / the long screws that use the chrome collars and 3mm nuts to attach / the rear housing. / Two Chrome collars (for above screws) / Two 3mm steel nuts (for above screws) / Six 3.5 x 12mm socket head screws - these are to attach the / rear housing / Two 3.5 x 15mm socket head screws - these are to attach the / rear housing / / REQUIRES: The 4mm screws use a 3mm allen wrench / The 3.5mm screws use a 2.5mm allen wrench / The 3mm screws use a 2.5mm allen wrench / The 2.5mm screws use a 2mm allen wrench / JBN 4.7.94 / ir/jl