Product review (5 stars): Fit perfectly. Just measure first and accurately
I wasn't sure these arms would work. But after measuring the spacing of the screws they were found to fit perfectly for my 24 year old 42 inch kitchen ceiling fan! That fan has been out of production for years and these worked perfectly.  I only needed 4 of the arms since the fan is only a 4 blade design, but that allowed me to keep a spare for any other cleaning incidents!  While cleaning the blades of the fan one of the arms was accidentally broken.  Again measure the distance between the blade mounting screws and the motor mounting screws before ordering and you should be good with these.  $20 saved me from having to buy a new fan,

Great product and fit.