spindle arm lock nut
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Freshman User
Joined: Jan 2007
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ROSS,
Thanks for the reply,
I thought I was lucky to find a7/8 -14 nut in a hardware store today.
But it was exceptionally hard to tread on.
I have a castle nut that treads by hand, but no hole for a cotter pin.
Possibly a bad batch of nuts.
Thanks for the reply,
I thought I was lucky to find a7/8 -14 nut in a hardware store today.
But it was exceptionally hard to tread on.
I have a castle nut that treads by hand, but no hole for a cotter pin.
Possibly a bad batch of nuts.
Hotshot
Joined: Oct 2009
Posts: 16,190
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From: Burbank, WA
If it's a lock nut, it's supposed to be hard to install (hence the 'lock' moniker). If not, it would benefit from running a thread chaser (not a tap) through it. New hardware these days is notorious for having sloppy threads and being hard to put together.
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Wayne.It was hard to tread with an impact gun,long before it hit the plastic lock.
But ill try the tread chaser.Thanks
But ill try the tread chaser.Thanks
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Fleet Owner
Joined: Jul 2004
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From: NM
Are you sure there isn't already a hole, possibly with the remains of a broken-off cotter pin in it? The parts illustration shows a cotter pin and washer, and it is described as a castle nut, which is only used with a cotter pin
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From: Sapulpa OK
Probably what your are dealing with is the heavy handed mechanic that put it in originally hit it so hard he compressed the threaded portion which expanded it.
Can you get a thread chasing die on it? That would restore the proper diameter.
Leave the broken drill bit in there but grind off any part of the bit that extends into the threads. When you assemble it, use an self locking nut and red locktite.
Can you get a thread chasing die on it? That would restore the proper diameter.
Leave the broken drill bit in there but grind off any part of the bit that extends into the threads. When you assemble it, use an self locking nut and red locktite.
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From: Sapulpa OK
If you use a chaser be sure to go slowly and use plenty of cutting oil. For each full turn of the chaser back off 1/2 a turn to break off the chip that forms on the leading edge of the chaser. Then advance another full turn. This is a procedure that you cannot hurry. Take your time and your threads will be as good as new.
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