couse grades vs fine thread

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VegasAnthony

NAXJA Forum User

Location

Las Vegas

• Jan 31, 2005

• #1

coarse grades vs fine thread

I was thinking of turning down a coupler nut to fab some adj long arms and was wondering if I can get away with using a coarse thres 1" #8 nut as opposed to fine thread 1" #14 like this write up uses
http://www.4x4getaways.com/LongArms.htm :repair:

 

Last edited: Jan 31, 2005

old_man

NAXJA Forum User

Location

Loveland, Colorado

• Jan 31, 2005

• #2

The fine thread seems to be a bit tighter and has less slop. I also only found the grade 8 bolts I used locally in the fine thread.

 

R

RCP Phx

NAXJA Forum User

Location

Phoenix,Az

• Jan 31, 2005

• #3

Re: coarse grades vs fine thread

I use 1-1/4"x12,the advantage of finer pitch is the "finer adjustment.Depending on what ends you use you may only be able to adjust them in 1-turn increments!

 

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VegasAnthony

NAXJA Forum User

Location

Las Vegas

• Jan 31, 2005

• #4

Re: coarse grades vs fine thread

im not real happy with slop in my control arms
as far as the pitch of the thread I just measure the adjustability of it on one turn and decide form there
it seems coupler nuts on the internet can be quite pricy
tapping is a pain in the butt
and inserts are over $20 bucs a piece in a 1" tread (if you can find em)

 

Last edited: Jan 31, 2005

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RCP Phx

NAXJA Forum User

Location

Phoenix,Az

• Jan 31, 2005

• #5

Re: coarse grades vs fine thread

I paid 5$ for mine!

 

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VegasAnthony

NAXJA Forum User

Location

Las Vegas

• Feb 3, 2005

• #6

Re: coarse grades vs fine thread

picked these up locally for $16 all together
so I figure the jam nut will tighten the thread enough to minimize the slop because of the coarse thread vs fine thread
one turn equals approx 1/4" diffrence in lengths

 

Last edited: Feb 3, 2005

R

RCP Phx

NAXJA Forum User

Location

Phoenix,Az

• Feb 4, 2005

• #7

Re: coarse grades vs fine thread

Two thoughts,first get more length for adjustability than that,second the reason for finer threads is to adjust the axle yaw.1/4" increments may not be able to properly square up the axle!