1/4" Diameter Oil Pipe BSP Fittings - For Douglas 2 3/4 hp Models and other Flat Tank Motorcycles

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1/8" BSP Nut and Ferrule To Fit Engine One Way Valve

1/8" BSP thread nut (CNC from Stainless Steel to original 0.5" AF Hex profile - hex milled from solid bar)  and tapered ferrule to fit 0.5" pipe.  These are the correct thread for the One Way Valve fitted on Douglas 2 3/4 hp crankcases, that the oil feed pipe attaches to

Note: these fittings are more expensive than commercially avaiable BSP fittings as we have specially written CNC programs to mill the hex from stainless steel round bar to the correct imperial hex size as original, with similar profile and chamfer to original nuts