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Bolt material query

R/C Submarine modelers

Postby John » Tue Aug 19, 2003 10:26 am

Any recommendations on bolt material for my scratchbuilt Vii please. They are bound to get wet (although not salt water) and are not going to get dried out properly.

Stainless would be the best obviously but are difficult to source. In your experience can I get away with bright zinc coated?

John
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Postby KOEZE » Tue Aug 19, 2003 11:25 am

I'd go with stainless. Zinc plated bolts have an irregular surface and are bound to rust in time with all damage due to wrenches and screwdrivers. Moreover the looks of stainless is much better (that counts too don't you think).

Here in the Netherlands any hardware store can supply stainless steel bolts and screws so it shouldn't be too hard.

EJK
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Postby Ramius-II » Tue Aug 19, 2003 11:30 am

Hi John:
One of the most useful sites for me is www.smallparts.com where you can find screws and hardware and materials. If what you are doing does not require a lot of strenght, you could use nylon or polyetheretherketone (AKA PEEK). A second place is www.mcmaster.com. Be prepared to spend time as the McMaster catalog is over 3,500 pages!

Cheers, Ed :)
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Postby raalst » Wed Aug 20, 2003 4:01 pm

I found R/C aeroplane shops sell plastic bolts.
These are nice if there is not too much pressure
applied.
Regards,

Ronald van Aalst

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Postby Silent Hunter » Fri Aug 22, 2003 7:37 pm

Here's one more good idea. If you really want to save some weight, have high strength, AND impress your freinds too! You can use Titanium fasteners. This company sells them at a reasonable cost. http://www.vulcanium.com/home.htm
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Postby Tom Spettel » Sat Aug 23, 2003 12:14 am

You can check out DU-BRO they have a whole line of stainless bolts (hex) washers and fiber locking nuts in 4-40
6-32 and 8-32.
Tom
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