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showbizkid
07-13-2007, 09:26 PM
I've noticed several instances in the parts manual where "shakeproof washers" are called out. What are these? Are they just an old name for outside-tooth lock washers?


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Clark in San Diego
'63 F2/Lark Standard
http://studeblogger.blogspot.com

sbca96
07-13-2007, 09:46 PM
http://www.ebolt.co.uk/catalog/images/fasteners/ss_shk_prf_wsh.jpg

Tom

'63 Avanti, zinc plated drilled & slotted 03 Mustang Cobra 13" front disc/98 GT rear brakes, 03 Cobra 17" wheels, GM alt, 97 Z28 leather seats, soon: 97 Z28 T-56 6-spd, Ported heads w/SST full flow valves, 'R3' 276 cam, Edelbrock AFB Carb, GM HEI distributor, 8.8mm plug wires

showbizkid
07-13-2007, 10:21 PM
Ah! Inside-tooth lockwashers! Why didn't they just say so! ;) Thanks Tom!


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Clark in San Diego
'63 F2/Lark Standard
http://studeblogger.blogspot.com

sbca96
07-14-2007, 02:24 PM
When I did a search .. it was mostly English websites that got hits.
I dont know if there is a difference between inside and outside ones.
The inside ones seemed to come up for "shakeproof".

Tom

StudeRich
07-14-2007, 02:31 PM
Clark; the V-8 exhaust manifolds had the thick (actually cast looking) FLAT washers and OUTSIDE tooth lock washers on the 3/8" bolts, on about 1960 and earlier they were nickel plated bolts and did not rust like 1961 and on type do.

I believe some Studebaker "shakeproof washers" are inside tooth, some outside tooth depending on their use.

StudeRich
Studebakers Northwest
Ferndale, WA

showbizkid
07-14-2007, 06:47 PM
The application I'm wondering about is the steering bellcrank pinch bolt.


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Clark in San Diego
'63 F2/Lark Standard
http://studeblogger.blogspot.com

StudeRich
07-20-2007, 02:21 PM
Those are OUTSIDE star lock washers.


quote:Originally posted by showbizkid

The application I'm wondering about is the steering bellcrank pinch bolt.

StudeRich
Studebakers Northwest
Ferndale, WA

showbizkid
07-20-2007, 05:45 PM
Thanks Rich! That helps, especially since I can't seem to find insides in 7/16" ;)


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Clark in San Diego
'63 F2/Lark Standard
http://studeblogger.blogspot.com

N8N
07-20-2007, 07:25 PM
Nickel plated, huh? that explains it... I thought they were stainless but they didn't look quite right. I use stainless when I replace 'em, anyway (actually my whole engine has stainless bolts everywhere they show, except for the head bolts <G>)

nate

--
55 Commander Starlight
http://members.cox.net/njnagel

55studeman
07-20-2007, 07:45 PM
Nate what's the best source you've found for getting the stainless steel bolts, nuts, washers, etc.

I always think of things last moment when I need to put the part on the car, then it's a little late to go looking. Figure I should ask and then plan ahead with ordering, since it's probably by mail.

Thanks,

Best Regards,
Eric West
"The Speedster Kid"
Sunny Northern California
Where the roads don't freeze over and the heat doesn't kill you.
And an open road is yours to have -only during non-commute rush hours 9am-4pm and 7pm to 7am (Ha, ha, ha)
55 Speedster "Lemon/Lime" (Beautiful)
55 President State Sedan (Rusty original, but runs great and reliable)

Roscomacaw
07-20-2007, 08:00 PM
Eric,
Down here in the south central valley, there are places that specialize in hardware and other stuff peculiar to the dairy industry (yes, California long ago surpassed Wisconsin in dairy production). The one that's about 12 miles from me has a NICE selection of stainless steel bolts 'n nuts! Cool stainless plumbing fittings too!
Actually, any place where there's lots of food processing industry ought to have hardware outlets that carry lots of stainless stuff.[8D]

Miscreant adrift in
the BerStuda Triangle
http://images.andale.com/f2/115/106/906179/2006/12/7/truckonhill3.jpg

1957 Transtar 1/2ton
1960 Larkvertible V8
1958 Provincial wagon
1953 Commander coupe

N8N
07-20-2007, 08:08 PM
I buy my stainless stuff from one of two places; if I can plan ahead Jerry Forrester sells stainless hardware, alternately this place is a convenient stop on the way to JP's place.

http://chesfast.com/

nate

--
55 Commander Starlight
http://members.cox.net/njnagel

55studeman
07-20-2007, 08:47 PM
Thanks much guys. Biggs, you should send me that shops info. I'll be trying to make it for the Zone meet Selma and might check it out while there. Also, the inlaws are a stones through from you, so I'm down there way too often

Nate, thanks also for the website.

Best Regards,
Eric West
"The Speedster Kid"
Sunny Northern California
Where the roads don't freeze over and the heat doesn't kill you.
And an open road is yours to have -only during non-commute rush hours 9am-4pm and 7pm to 7am (Ha, ha, ha)
55 Speedster "Lemon/Lime" (Beautiful)
55 President State Sedan (Rusty original, but runs great and reliable)

sbca96
07-21-2007, 06:38 AM
Before you go out and blow your money on stainless fasteners, make
sure you research their ratings! Most stainless fasteners are Grade 2
which I would NEVER use on suspension parts. People assume that just
because its stainless - its stronger - thats not the case.

Tom

jimmijim8
07-21-2007, 10:26 AM
Very good Tom, I was just about to make that statement. Very good. jimmijim

HookedonStudies
07-21-2007, 09:14 PM
Regarding the strength properties of various types of fasteners and fastener materials, I ran across an interesting article which addresses this topic from the perspective of BMW motorcycles.

http://home.jtan.com/~joe/KIAT/kiat_2.htm

55 Commander
58 Transtar
62 GT Hawk
66 Cruiser

N8N
07-21-2007, 10:16 PM
I wouldn't use stainless for any bolt where a failure would cause any immediate issues, but I see no problems using them for valve covers, oil pans, etc. I have even used them on intake manifolds, exhaust manifolds, and water manifolds with no issues. In fact a SS bolt is significantly stronger than the Studebaker factory intake manifold clamp :( SS is stronger than the Grade 2 stuff you will find at the hardware store, but not quite as strong as a Grade 5 bolt.

Certainly do not use stainless for anything suspension related (they should all be grade 5 minimum, the pinch bolt for the bellcrank is Grade 8) or head bolts.

nate

--
55 Commander Starlight
http://members.cox.net/njnagel

dave smith
07-22-2007, 04:08 PM
there are now grade 8 stainless available but their spendy

hank63
07-23-2007, 07:35 AM
The name of this topic (shake proof washers) make me smile a bit. Nuts and bolts can come undone, even with the various special washers in place. I think of 'em as "shake resistant".
Anything to do with brakes, steering or suspension always get a dose of lock-tite on my cars. I also tend to bend over a thread or two on the various steering component threads.
That way, I'm fairly confident the bits won't rattle loose and fail in an inopportune moment.
/H

showbizkid
07-23-2007, 11:18 AM
That's a good point Hank. I've learned never to trust lock washers, especially split-rings. I've disassembled too many vibration-prone assemblies to find them loose and sloppy from road vibes. Loctite blue makes sure that doesn't happen.


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Clark in San Diego
'63 F2/Lark Standard
http://studeblogger.blogspot.com