Topic: Thread File


bo8109b    -- 08-14-2011 @ 10:45 AM
  Managed to bugger up the starting threads on one hub bolt. Can this be saved with a thread file and what is a thread file? Carl


37RAGTOPMAN    -- 08-14-2011 @ 12:47 PM
  a die the same size as the treads is the way to go,
take a lug nut to a AUTO SUPPLY CO, they will be able to sell you a die to chase the treads,
or remove the hub and let them do it,
if to bad, have the stud replaced.
my 3 cents of advice 37RAGTOPMAN


supereal    -- 08-14-2011 @ 2:03 PM
  A thread file is a tool with eight different thread pitches on it. They are useful if only a small part of the threads is compromised. As they are files, they tend to destroy the damaged parts. I wouldn't use them on an axle, but if you are referring to a wheel mounting stud, it would be OK. If it is the end of an axle, a thread chasing die is required. Ford used a lot of odd threads, such as 28. If you can't find the correct die, you can try sawing or filing notches in a nut of the correct size and using it to clear the threads by oiling it up and working it back and forth until the threads are able to accept a nut. That's a trick I learned when I couldn't afford a tap and die set. Most axle threads were damaged by using a "knock off" instead of a puller, such as the excellent Winfield KRW repro. Axles are now VERY expensive, not to mention the time and effort to install them.

This message was edited by supereal on 8-15-11 @ 9:23 AM


trjford8    -- 08-15-2011 @ 8:42 PM
  The wheel stud should be 1/2X20. Most hardware stores will have the die.


42ford    -- 08-15-2011 @ 10:14 PM
  If I read the post right, The problem is with a wheel stud, not the axle thread. If so a thread chaser die should be used. A chaser die is not a normal die. It will not make the stud undersized, and is is cheaper. they are usually color coded with coarse being silver and fine being black. You cannot thread a blank piece of steel with a chaser. If you have a problem with the threaded end of the axle,you can use an axle die which is a 2 piece die the fits over the threads at the end away from the damaged end, and locks on. You can then back it off and have good threads all the way to the end of the axle.


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