Spring Compressor Thread Size
 

What is the standard thread size for common coil spring compressors? Appears to be 5/8-10 ACME threads, but this particular thread size seems relatively uncommon in terms of ACME threads. I need to remake the threaded rod for my spring compressor, as it's not long enough to sufficiently compress the taller drag race-style springs.

Re: Spring Compressor Thread Size
 

I don't remember the exact size of mine but when I searched ACME threaded rods on McMaster-Carr's website I was able to figure it out based on the info they provided with the rods.

Re: Spring Compressor Thread Size
 

make sure the rod you get is 4140 ,not 1018 .......The tensile strength of 4140 is double that of 1018 .
Yes , I learned this the hard way !