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Old 03-05-2003, 08:11 PM   #1
DoinkMobb
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Default where can I get lightweight bolts, screws?

First of all, am I insane just for asking this?

While rooting around in my car, I've noticed a lot of pretty good sized bolts holding things together. While some of them hold down important things (front seats), others hold down minor things (rear seat cushions). I'm less concerned with screws, but I'm interested in them also.

Do lightweight bolts even exist? Do they compromise strength for less weight? Am I so obsessed with a lighter car that I'm willing to replace all the bolts with lighter ones?

I think I remember seeing lightweight lug nuts, so lightweight bolts don't seem so far fetched to me.

Mods: every "weight reduction" thread gets moved to NA for some reason eventually, that's why I started this here.
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Old 03-05-2003, 08:15 PM   #2
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Default Re: where can I get lightweight bolts, screws?

Quote:
Originally posted by DoinkMobb
First of all, am I insane just for asking this?

While rooting around in my car, I've noticed a lot of pretty good sized bolts holding things together. While some of them hold down important things (front seats), others hold down minor things (rear seat cushions). I'm less concerned with screws, but I'm interested in them also.

Do lightweight bolts even exist? Do they compromise strength for less weight? Am I so obsessed with a lighter car that I'm willing to replace all the bolts with lighter ones?

I think I remember seeing lightweight lug nuts, so lightweight bolts don't seem so far fetched to me.

Mods: every "weight reduction" thread gets moved to NA for some reason eventually, that's why I started this here.
Dude if you're even thinking about questioning the existence of lightweight bolts then you've probably never heard of or seen sprint cars before, huh? These guys are so weight-conscious it unbelievable. One idea of a place to get titanium bolts is Boeing up here in WA. They always have sales and stuff. If that doesn't work, shoot me an email and I'll see what I can do for you.

justin@thesprintshop.com and check out www.thesprintshop.com
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Old 03-05-2003, 08:16 PM   #3
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By the way, we have (or can get) titanium, aluminum and hollow 4130 chromoly bolts!
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Old 03-05-2003, 08:40 PM   #4
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Dewey 8d - I'm assuming these lightweight bolts are just as strong as the stock bolts? I don't want bolts breaking in an accident and having my seat come loose or anything.

Off the top of my head, I can think of 18 bolts I'd replace:
driver's seat - 5
pass. seat - 5
front seatbelts - 2
bottom rear cushion - 2
top rear cushion - 2
rear seat belts - 2
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Old 03-05-2003, 08:42 PM   #5
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Drop me an email and I'll send you some links to our suppliers' websites. Also, I'd need to know the sizes & thread for the bolts you need.
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Old 03-05-2003, 09:38 PM   #6
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Just make sure your replacement bolts have a higher tensile strength and torsional strength than the stock bolts, and you'll be fine.

At least I believe that is what should work after taking Strenghts of Materials 2 years ago.
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Old 03-05-2003, 10:20 PM   #7
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If anyone is familiar with the bicycling industry (which I worked in for about 8 year) we would consider you all to have "the gram disease". There are people that would spend $1000 just to make their 16.5 lbs race bike down to 15.9 lbs or something else to that ridiculous point. I agree on weight reduction, I just find it funny that most people that are trying to shave all this weight would benefit more from losing 10, 20, 100 lbs off of their big behinds!!!!
Not saying that ya'll are fat, but usually there are many other places to lose weight before you go crazy spending all kinds of money on lightweight bolts.
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Old 03-05-2003, 10:28 PM   #8
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Man bolts are crazy expensive!

RawCode
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Old 03-06-2003, 06:54 AM   #9
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I would be interested in a kit for my car if someone put it together. Titanium would be nice since it would never rust and is lighter. If we could buy in volume they would not be ver expensive just buying a few are expensive.
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Old 03-06-2003, 08:16 PM   #10
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Quote:
Originally posted by Tattoo Collector
There are people that would spend $1000 just to make their 16.5 lbs race bike down to 15.9 lbs or something else to that ridiculous point.
I guarantee if I owned a bike, I would be doing the same thing.

Dewey 8d - I'll have to go out and take some measurements of various bolts before I get back to you.

If these bolts turn out to be too expensive, I'll spend my money elsewhere I guess. But if they're reasonable, why not? Lightweight rims, racing seats and aluminum hoods are expensive - if I can drop a little weight for a little money, it sounds good to me.

cpu77 - yeah a "lightweight bolt kit" would be a good idea for our cars. I wonder how many people would be interested in that?
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Old 03-06-2003, 08:18 PM   #11
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Quote:
Originally posted by Tattoo Collector
If anyone is familiar with the bicycling industry (which I worked in for about 8 year) we would consider you all to have "the gram disease". There are people that would spend $1000 just to make their 16.5 lbs race bike down to 15.9 lbs or something else to that ridiculous point. I agree on weight reduction, I just find it funny that most people that are trying to shave all this weight would benefit more from losing 10, 20, 100 lbs off of their big behinds!!!!
Not saying that ya'll are fat, but usually there are many other places to lose weight before you go crazy spending all kinds of money on lightweight bolts.
See: www.worldofoutlawracing.com

I completely agree with you statement!
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Old 03-07-2003, 06:28 PM   #12
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I could care less about lightweight bolts, I'm more interested in getting bolts that won't rust to pieces when exposed to the elements.

Know where I can get some of those?
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Old 03-08-2003, 12:34 AM   #13
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Quote:
Originally posted by obyone
I could care less about lightweight bolts, I'm more interested in getting bolts that won't rust to pieces when exposed to the elements.

Know where I can get some of those?
I concur. Basically, I want to find myself hardware to replace all of the suspension bolts that I can (Grade 8 hardware and the like) that won't rust, damnit. I did a big search for sources a while ago, but the only places I found only sold in bulk quantities (1000+ pieces). Any ideas?
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Old 03-08-2003, 02:47 PM   #14
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Why not just gut your trunk, get lighter seats, CF hood and trunk, lw bumper beams, lw battery, remove non-essential weights/Items?
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Old 03-08-2003, 07:11 PM   #15
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Quote:
Originally posted by kidatari


I concur. Basically, I want to find myself hardware to replace all of the suspension bolts that I can (Grade 8 hardware and the like) that won't rust, damnit. I did a big search for sources a while ago, but the only places I found only sold in bulk quantities (1000+ pieces). Any ideas?
How do auto manufacturers get their bolts anodized (to keep them from rusting)?
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Old 03-09-2003, 01:45 AM   #16
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Quote:
Originally posted by kidatari


I concur. Basically, I want to find myself hardware to replace all of the suspension bolts that I can (Grade 8 hardware and the like) that won't rust, damnit. I did a big search for sources a while ago, but the only places I found only sold in bulk quantities (1000+ pieces). Any ideas?
you realise that factory bolts are metric class 10.9 which is MUCH stronger then grade 8 SAE bolts right??

i also concur with tattoo collectors statement whole heartedly.
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Old 03-09-2003, 02:35 AM   #17
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midnx03 what's your major?
-y
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Old 03-09-2003, 09:35 PM   #18
DoinkMobb
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Quote:
Originally posted by joefocker20
Why not just gut your trunk, get lighter seats, CF hood and trunk, lw bumper beams, lw battery, remove non-essential weights/Items?
trunk = gutted
non-essential items = removed
CF hood, bumper beams, battery, seats = lots o' money

I'm trying to figure out what I can replace besides the obvious lightweight items. I'm also running out of stuff the remove from the car.
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Old 03-09-2003, 10:16 PM   #19
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tow hooks?
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Old 03-09-2003, 10:18 PM   #20
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Bumper Beams are only 123 dollars from subaruparts.com.
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Old 03-09-2003, 11:04 PM   #21
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You don't really need an E-brake, air conditioning, passenger and rear seats, air bags, interior trim (all of it; center console, door panels, etc), hood prop, condenser, mud flaps, antenna, stereo, speakers. Anything I missed? You could also change out your glass to plexi glass. I figured that I would add to the craziness of this post once more. Later.
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Old 03-10-2003, 07:21 PM   #22
DoinkMobb
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Um...these bolts are a little more expensive than I thought.

www.racebolt.com
www.mettec.com

I'm not about to spend $5-10 per bolt to save a few pounds.
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Old 03-11-2003, 04:28 PM   #23
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I love "lighten it" threads. I used to be a bike racer and was into the "drilled out water bottle" mentality. Titanium everything. And yes, the bolts are $5-$10 each. Some places you can reduce, assuming you may have missed some.

Tie down hooks. Rear 1 is about 1-2# and takes 3 bolts to remove. Front there are 2 but require removal of the plastic panel to get to. Rear seats and deck, upper child seat latches (3) can come out, Rear seat upper is held in by 3 bolts...remove the center one. You can probably find aluminum replacements for the remaining 2 upper and 2 lower. If you don't carry rear passengers, remove the seat belts. Exhaust guards can be removed....just don't drive in grassy fields. Engine has a number of items.....guards over the belts, extra brackets for the intake silencer, which can be replaced by a diy 3" brake hose intake. Rear wing removal, front hood scoop removal (if you have an RS) along with the guards underneath. Replace the hood scoop with a thin fiberglas panel....or PM me....I'm trading in my RS and have mine for sale with screws and spacers for $20 + shipping.

jack
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