Head Restraint by DJ Safety

[Dave Haller]

Hey out there, I just received the new and more affordable HANS device from DJ Safety. It is pretty trick. I found with this device just like others I checked out the bolt will not reach through the helmet to mount the slide hook. It is about 1 1/2 inches short of coming through my new helmet. I bought the Bell Sport Helmet which has an extra thick inside liner. Anyone out there installed the system on a helmet like that? I could use some ideas. I was looking around for longer bolts but don't find any in the available kits out there. I think I need to recess the inside washer and bolt head but don't know if that will compromise the safety of the helmet. It was predrilled for the HANS type device.
Thanks for any help. 8-)

[Peter Jack]

Have you removed the liner to install the bolts? That's part of the procedure.

Pete

[JamesJ]

If it was pre drilled then it is a SAH helmet and all SAH helmets should be the same, with my HANS and BELL helmet there is no reason to have to remove any padding or do anything from the inside.  You just screw either the bolt and quick release system into the pre drilled place or srew the traditional clip on anchors on.  If it was an older SA helmet then you would have to use the nut washer things on the inside of the helmet.  I am not familiar with the DJ system but I would think that it works very similar....

[jdincau]

Dave,
     Call Joe at DJ and ask for help. You do not want to get this wrong. I watched him install the studs on my sons helmet and they only go through the shell not any of the padding. He had to slip the threaded washer under the padding and thread the stud into it.

[Dave Haller]

Thanks, I'll call Joe at DJ's. The liner in the helmet is pretty thick and I don't see where I can lift it to get underneath without damaging something.

[Dave Haller]

Got them mounted last night, easier than I was thinking.

[Jonny Hotnuts]

Got them mounted last night, easier than I was thinking.

You have too much on your mind as of late. 

 

[fastman614]

Dave H.... I started reading this thread and you had me worried about special ways to mount these things and ....

I am glad to hear it was easier than you at first thought! 

[Saltfever]

Hey out there, I just received the new and more affordable HANS device from DJ Safety. It is pretty trick. I found with this device just like others I checked out the bolt will not reach through the helmet to mount the slide hook.

SFI has published an anouncement about counterfeit bolts! Even though "SFI" is etched on the bolts they are counterfeit. I would make sure of the manufacturing pedigree.
http://www.sfifoundation.com

Thanx for the info about the Bell sport.

[Saltfever]

The paragraph on counterfeit bolts is hard to find. To save you time, here is the SFI anouncement.


COUNTERFEIT HANS POST ANCHORS DISCOVERED
On August 19, 2009 and August 21, 2009, HANS Performance Products issued press releases regarding helmet post anchors it discovered to be counterfeit. For more information click on and follow this link: http://hansdevice.com/Anchor-Replacement. These counterfeit post anchors bear an "SFI" etching in the metal itself. SFI has not tested or approved these counterfeit post anchors and therefore they are not approved for usage in any motorsports activity or event covered by SFI ratings and standards. For their own safety, SFI encourages all members of the racing community to examine their helmet post anchors very carefully and contact a HANS dealer or representative if they have any questions about the part. Any companies manufacturing, marketing, distributing or selling these counterfeit products are hereby on notice that they must immediately exercise all necessary means to locate and remove these counterfeit post anchors from any and all usage in motorsports activites or else risk their continued approved participating in SFI programs.


     

[fastman614]

Counterfeiting the bolts.....just what level will people like this stoop to?.....When you begin to think that "they" can't stoop any lower, they surprise you.... I would put the conterfeiters of the type of parts in the same category as pedophiles! And I hope that law enforcement is on their trail as this sort of stuff could be the precursor to someone (or many people) needlesly dying!

[Stainless1]

Counterfeiting the bolts.....just what level will people like this stoop to?.....When you begin to think that "they" can't stoop any lower, they surprise you.... I would put the conterfeiters of the type of parts in the same category as pedophiles! And I hope that law enforcement is on their trail as this sort of stuff could be the precursor to someone (or many people) needlesly dying!

Actually happens frequently in the airplane industry.... it is not necessarily the bolts are bad, they just have not been certified.  They make one batch and it gets certed, the next the same, the third, no cert and somehow they get mixed together.
Marked with SFI... they may have been making them and certing but the recent batch they didn't pay the SFI.... sound familiar....

Oh, in airplanes, they take them all out and get new ones... usually costs a fortune and somebody gets sued...

[Nexxussian]

It could be like "bogus parts" on aircraft, or it could be our oriental friends being "industrious".

Hard to say.

As for "how low will they stoop", you have to remember, the people doing that aren't stooping, they're reaching up.

[hotrod]

Yep been happening for years, in all categories of high strength fasteners.
Even major manufactures have been snookered on this one, only batch by batch inspection and random testing will catch them.

It was serious enough that Carrol Smith in his book "Nuts Bolts Fasteners and Plumbing Handbook" published in 1990 mentions it on the first page of chapter 4, (page 53) and also mentions the issue of user responsibility regarding part inspection again later in the book on page 194. He strongly suggested sticking with aircraft certified parts from well known suppliers like Aircraft Spruce that are buying direct from the certifying manufacture, or a company like ARP that does 100% in house manufacture and quality control.

It has been going on for decades and I would bet a good sum of money every car out on the salt has a bolt in its structure that does not meet its rated strength.
It was most common in the high strength fasteners like grade 8 and above bolts sold in consumer outlets. Stamping a grade 8 or higher mark on the bolt head leads lots of folks to blindly assume they are superior for any application and spend far more than the bolt is worth to get that "perceived value". In fact many of these bolts are highly suspect and may meet tensile strength tests but fail due to lack of ductility or some other specification being out of tolerance, like thread form, diameter etc.

I strongly encourage racers to read up on counterfeit bolts and do some soul searching about where they buy their fasteners for critical applications, that absolutely demand the best fastener you can put in the hole.

Larry

[Tman]

Note that the hardware warning came from HANS and not DJ Safety. This is how these stories get mixed up on the interweb thingy