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terryly
Samba Member
Joined: September 21, 2012
Posts: 309
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 Posted: Mon May 07, 2018 5:35 am Post subject: Beam clamp Bolts |
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Hi folks swapping out my torsion beam for a coil over set up. The frame mead is cut off and I am using 1.5" tube and stamped steel beam clamps. last time I assembled it i used 3/8 grade 8 hardware for the clamps. Wanting to do this correctly What is the correct hardware for beam clamps ?
grade 8 bolt < flat washer <CLAMP >flat washer > lock washer > Grade 8 nut
Is that correct Nylock nut ? Stover nut ? Cap head bolt ?
Thanks
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2180cc MS3PRO sequential fuel and spark 42mm IDF style Throttle boddies
Calgary Alberta Canada
Terry Lytle |
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Dale M.
Samba Member
Joined: April 12, 2006
Posts: 20380
Location: Just a tiny bit west of Yosemite Valley
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| Posted: Mon May 07, 2018 7:12 am Post subject: Re: Beam clamp Bolts |
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Yes use lock washer or lock nut.... If using washer use SAE and not wrought washer, SAE has smaller od than wrought...
Dale
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All suggestions and advice are purely my own opinion. You are free to ignore them if you wish ... |
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Vanillagurilla
Samba Member
Joined: November 21, 2017
Posts: 1061
Location: California
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| Posted: Mon May 07, 2018 11:09 pm Post subject: Re: Beam clamp Bolts |
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| Lock washers don't do sh!t lol use a nylock nut if you can find some. |
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Vanapplebomb
Samba Member
Joined: November 03, 2010
Posts: 5417
Location: Holland, MI
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| Posted: Tue May 08, 2018 3:48 am Post subject: Re: Beam clamp Bolts |
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Loctite 271 or permatex high strength is also a good idea.
For the record, I tend to favor M10 bolts over 3/8. Everything else is metric, why mix and match standard and metric? Use class 12.9 M10 bolts. Overkill, but very strong.
I use a bolt with a flat washer Uber the head, a flat washer on the back with a Schnorr washer between the flat washer and nut, and a dab of 271/high strength on the nut. It won’t go anywhere.
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http://www.thesamba.com/vw/forum/viewtopic.php?t=487021 |
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L5wolvesf
Samba Member
Joined: August 17, 2009
Posts: 196
Location: Northern AZ
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| Posted: Tue May 08, 2018 9:06 am Post subject: Re: Beam clamp Bolts |
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| Vanillagurilla wrote: |
| Lock washers don't do sh!t lol use a nylock nut if you can find some. |
Agreed as far as split lock washers, the star type are somewhat better. And YES to Nylock.
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Vanillagurilla
Samba Member
Joined: November 21, 2017
Posts: 1061
Location: California
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| Posted: Tue May 08, 2018 12:57 pm Post subject: Re: Beam clamp Bolts |
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| L5wolvesf wrote: |
| Vanillagurilla wrote: |
| Lock washers don't do sh!t lol use a nylock nut if you can find some. |
Agreed as far as split lock washers, the star type are somewhat better. And YES to Nylock. |
Star type are ok as a anti vibration washer on smaller fasteners but the only locking washer that actually works is a nordlock. Bad part is there about $10 each and don't work well with high grade hardened bolts as they need something to bite into. |
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terryly
Samba Member
Joined: September 21, 2012
Posts: 309
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| Posted: Wed May 09, 2018 4:53 pm Post subject: Re: Beam clamp Bolts |
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Thanks for the input fellas.  Time to go hardware shopping
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2180cc MS3PRO sequential fuel and spark 42mm IDF style Throttle boddies
Calgary Alberta Canada
Terry Lytle |
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dustymojave
Samba Member
Joined: January 07, 2007
Posts: 5802
Location: Lake LA, Mojave Desert, SoCal
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| Posted: Fri May 11, 2018 1:06 pm Post subject: Re: Beam clamp Bolts |
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Just so you know..
Those beam clamps are JUST FINE with Gr5 bolts. SAE flat washers for the smaller OD for better fit, or even maybe 5/16" SAE washers for an even smaller OD. Some 5/16" washers are made with oversize ID and will fit snug on 3/8" bolts.
I use nylock nuts. When prepping offroad race cars, I go for a belt & suspender sort of approach with nylock nuts AND Loc-Tite. I prefer fine thread bolts and nuts. But It's really not necessary. I've seen lots of play buggies that have run around for years with Gr2 bolts  that haven't failed. I like to install those bolts with the head forward, so the thread are less likely to get damaged if you slam the front into a dirt bank, hole or rock.
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Offroading VW based cars since 1965
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