what washers and nuts to use for allthread?

[shizzzon 461]

Never used allthread in a high pressure install so need some small tips in this area.

I know that when allthread is ran from one side to another that washers and nuts are used on both sides of a wall.

So that means 1 run of allthread will have 4 washers and 4 nuts on it.

What kind of washers and nuts am i suppose to use inside of the box to prevent them from coming loose?

I looked at nylon lock nuts but i cant use those on the inside because to get the nuts on the inside, you have to roll em on before you slide the allthread through the other wall. So, roll nut one way then back the other way to lock in place... nylon nuts appear to only roll in one direction so i dont know what other type of nut\washer to use.

[Jay-C76 333]

I'd use 1/2" allthread..because you'll snap 3/8" just by tightening the nuts.

Flat fender washers, and regular galv. nuts.

[shizzzon 461]

i'm actually gonna be using 3\4" allthread because i didnt like the flexibility of 1\2" allthread at over 4ft long, lol.

So, just flat fender washers and galvanized nuts, huh...

Do i need to use any threadlocking material or just tighten up and be done? I always assumed with that much pressure the nuts would loosen up in no time.

[Jay-C76 333]

Oh, and yes, to get the nuts on the inside you'll have to

add the washers as needed and spin the nuts as you feed the allthread in.

make sure you measure and keep things where they go.

You don't want to stretch or shrink the chamber.

[Jay-C76 333]

no not really...

just brush a small layer of f/g resin

over the nuts and threads after everything is good to go.

Plus it helps seal up the holes.

LOL...I should post up pics of that install that's pictured....

That was massive! Quad R/F T115d2's

Edited May 29, 2009 by Jay-C76

[Jay-C76 333]

i'm actually gonna be using 3\4" allthread because i didnt like the flexibility of 1\2" allthread at over 4ft long, lol.

Actually...

When it's locked down under a little tension,

it woun't flex or move at all.

I could hit these with a hammer full force.

It just made a "ping" sound and hurt my wrist a little..LOL