Main concern would be that it fits concentrically & flat , to the prop driver etc .
Being two types -
The machined backplate to prop driver type ,
&
the cheap plastic - to front of prop - screwed on nosecone ,type .( which depends on a flat parrallel surfaced prop . Preferably with a good diameter ( not tinny ) hub ) .
SO . . Ne Nah Ne Nahhh . if the flash type , getting a good interface to the engine / prop driver , is essential .
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Running a three inch , screw together ( allen screws ) 3 blade & screw or 2 blade 4 screw modified to 4 blade ,
with a one ounce weight , 0.6 ounce Extn. type nut to carry it , 3 in plastic spinner & 12 inch carbon 3 blade prop,
Theres 5 1/2 ounces doing its thing , out in front . So we do the nut up tight ! .Spins concentric , no worries .
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Theres the Goldberg Etc recessed backplate , rebated mateing join , two allen screw , plastic 1 1/2 inch Dia. type .
These might be the best bet ( fairly light ) . The plastic center ' diameter matcher ' to the shaft , seems o.k. , on he 3 inch one .
Might pay to find a fancey ' grade ' allen screw , or better , screw in stud . Maybe with a fine steel tube over , to match prop & spinner I.D. .
Plastic ones though , crushing the backplate gets it spinning out of whack , and worries your ply nose ring , so Alumniums more durable .
Plastic spinner with custom alloy backplate would seem perhaps the best, then .