Trailer bar bolt ?

Submitted: Wednesday, May 27, 2009 at 19:56
ThreadID: 69244 Views:2716 Replies:10 FollowUps:13
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I have a Hayman Reece style tow bar with a removable pin holding the tongue and ball in place. I am wondering if it is safe and legal to replace this pin with a stainless steel bolt I can fix firmly in place.


I am planning on towing a fairly large van so want to be sure it stays in the rear view mirror :-)
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Reply By: Member - Ian H (NSW) - Wednesday, May 27, 2009 at 20:00

Wednesday, May 27, 2009 at 20:00
NO! Absolutely not. Stainless steel is too soft.
If you use a stainless bolt the van will stay in your rear vision mirror but will get so small you won't be able to see it.
AnswerID: 367036

Follow Up By: Michael ( Moss Vale NSW) - Wednesday, May 27, 2009 at 20:06

Wednesday, May 27, 2009 at 20:06
Soft!!!!! Its harder that the standard pin..Stainless steel may work harden over time and COULD fatigue. It is definately not soft!! Michael
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FollowupID: 634720

Follow Up By: Bushwhacker - Wednesday, May 27, 2009 at 21:09

Wednesday, May 27, 2009 at 21:09
Depends on the grade of stainless steel whether it is soft or not. It WILL work harden and fatigue.... if it lasts long enough. For goodness sake, don't use stainless! Dunno what pin you have Michael, but I would imagine the pin SHOULD be a high tensile grade steel, 4140 grade or similar. It's not how hard or soft it is, it is its shear strength that is important. The '40' on the end of grade '4140' means the steel has 0.4% carbon content, and is heat treatable... minimum carbon content for heat treatment is 0.4%. Obviously there are harder steels, but this is not necessarily better, might just fracture through slight impact, so stick with the ADR recommendations. Not an engineer, but an experience fitter/machinist. 'Whacker
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Follow Up By: Michael ( Moss Vale NSW) - Wednesday, May 27, 2009 at 21:32

Wednesday, May 27, 2009 at 21:32
I started work with the same trade, 4140 is probably ok without heat treatment as it has a medium core strength.. I agree, best to use the standard pins available and avoid any grief!! Michael
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Reply By: toyocrusa - Wednesday, May 27, 2009 at 20:09

Wednesday, May 27, 2009 at 20:09
Hi I have a similar Towbar/Tongue and have replaced the original pin with a lockable one. It is stainless but probably is a stainless alloy of some sort with a high sheer strength. I'm sure you could purchase a similar high strength Stainless bolt at an engineering place. Regards, Bob.
AnswerID: 367037

Follow Up By: D200Dug- Wednesday, May 27, 2009 at 20:26

Wednesday, May 27, 2009 at 20:26
I will ask at my local bolt shop I would buy a lock but I never remove the tow ball so cannot see the need for one.

Is there a reason to remove a tow ball ?
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FollowupID: 634726

Follow Up By: pop2jocem - Wednesday, May 27, 2009 at 20:43

Wednesday, May 27, 2009 at 20:43
Yes, without a lock someone may give your expensive tow hitch a new home

Cheers Pop
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FollowupID: 634734

Follow Up By: Penguin (NSW) - Thursday, May 28, 2009 at 15:14

Thursday, May 28, 2009 at 15:14
I think there is a very good reason to remove the tow ball and goose neck on my L/C anyway: I use the rear cargo doors frequently and the towbar really hurts when you hit your shin on it. :-(
Mike
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FollowupID: 634871

Reply By: Kev - Member - Wynnum - Wednesday, May 27, 2009 at 20:28

Wednesday, May 27, 2009 at 20:28
Hi,

I'm pretty sure that you will find that the trailer connection has to be able to be removed without the use of tools. Somewhere in the ADR'S I believe.

Kev
AnswerID: 367043

Follow Up By: pop2jocem - Wednesday, May 27, 2009 at 20:48

Wednesday, May 27, 2009 at 20:48
Hi Kev

Thats most interesting, do you know if this means seperating car and van/trailer or removing the actual tow hitch or tongue from the vehicle?

Cheers Pop
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FollowupID: 634737

Follow Up By: D200Dug- Wednesday, May 27, 2009 at 21:32

Wednesday, May 27, 2009 at 21:32
If you had a lock on you would still need to find the key.

Losing keys is one reason I don't want a locking one :-)
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FollowupID: 634745

Follow Up By: Leroy - Wednesday, May 27, 2009 at 23:01

Wednesday, May 27, 2009 at 23:01
The genuine holden hitch I got with the car from new has a bolt with a split pin and not a pin with a split pin from new! I reckon it passes ADR's.

Leroy
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FollowupID: 634774

Follow Up By: Member - Matt (Perth-WA) - Thursday, May 28, 2009 at 15:55

Thursday, May 28, 2009 at 15:55
Close Kev...but not quite.

If the bar can be removed without tools...then if not towing it has to be removed.

If the bar cannot be removed without tools...then you can leave it in place so long as it doesnt obstruct your number plate...hate to lose Flash revenue!!

Just think of sedan with bolted on tongue and a HR with removeable hitch...one you can ther other you cant.


Matt
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FollowupID: 634883

Reply By: happytravelers - Wednesday, May 27, 2009 at 20:54

Wednesday, May 27, 2009 at 20:54
For the sake of any future safety or insurance issues just fit a lockable pin. They're only about $25 from memory.
Jon
AnswerID: 367053

Reply By: Angler - Wednesday, May 27, 2009 at 21:25

Wednesday, May 27, 2009 at 21:25
I have one of those lockable ones and it is chrome plated steel not stainless.
AnswerID: 367063

Reply By: mechpete - Wednesday, May 27, 2009 at 21:36

Wednesday, May 27, 2009 at 21:36
I think Hayman Reece would have done their research ,its their name at
stake .
mechpete
AnswerID: 367068

Follow Up By: Member - Peter R (QLD) - Wednesday, May 27, 2009 at 21:59

Wednesday, May 27, 2009 at 21:59
A friend recently got a nasty surprise after stopping at a mid size town.

Just down the road from where he took off his camper trailer came adrift.
On inspection the bolt was missing.

Police advised him that it is one of the fun things the young no hopers do is to remove the pin , and best way to overcome is to use a lockable pin.

Pedro

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FollowupID: 634755

Follow Up By: Michael ( Moss Vale NSW) - Thursday, May 28, 2009 at 07:53

Thursday, May 28, 2009 at 07:53
Gee!! That would stretch the wiring!!! Michael
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FollowupID: 634796

Reply By: Brian (Montrose, Vic.) - Wednesday, May 27, 2009 at 22:33

Wednesday, May 27, 2009 at 22:33
Put a lockable pin on and put the key for it on the same ring as your ignition key, that way you will never leave home without it.
AnswerID: 367083

Reply By: Member - Jeff M (WA) - Thursday, May 28, 2009 at 02:13

Thursday, May 28, 2009 at 02:13
I just drilled a small hole through the existing pin and put a padlock through it to stop someone knocking off the hitch.
AnswerID: 367104

Reply By: MrBitchi (QLD) - Thursday, May 28, 2009 at 07:54

Thursday, May 28, 2009 at 07:54
Raises the question, what sort of bolt is used on Prados? I notice they use a bolt and nut, not the usual pin arrangement.
AnswerID: 367110

Follow Up By: Member - Peter R (QLD) - Thursday, May 28, 2009 at 10:39

Thursday, May 28, 2009 at 10:39
Not on my Prado with HR WDH
I use the lockable bolt

Pedro
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FollowupID: 634823

Reply By: D200Dug- Thursday, May 28, 2009 at 16:42

Thursday, May 28, 2009 at 16:42
Many thanks for all the replies and comments

The bar itself is locked in with a tightening bolt so needs tools to remove anyway.

So I spent $1 on a small stainless bolt and nut to replace the spilt pin arrangement currently locking the pin in place.

So the tow ball is held by the original pin and the original pin is locked with the small bolt.

Thanks again

cheers doug :-)
AnswerID: 367178

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