Brass vs Bronze or Bronze Silcone Screws

[Maria CS20 104]

??? I have looked all over and cannot find the Silcone Bronze or Bronze screws, I can get my hands on brass to the most part.  Checked Jamestown Supply and they do not seem to have the variety needed in the plans?  Is there another supply house I can get all in one order?  Frustrating because I do not use the web often enough to cruise through and find stuff, my wife can but she and I are stumped by this simple task of hunt and peck through a ton of sites.  I know you wizards have some prefered sites and suppliers.  HELP

THanks, Jim

[PAR]

http://www.mcfeelys.com/search/boat+screw

[Hirilonde]

Jamestown Distributors is a good source as well.

[Maria CS20 104]

::)Ray, I stand, or sit as the case may be "REBUKED".  Navy background, did spend lots of time polishing brass though, but like a sailor, I figured ounce in place and ste, covered with epoxy it would not be a big deal.  I'll look at PAR's web provided and see what they have to solve my dilema with the fasteners.  On subs, there is a little brass (or was 25 years ago), used to get a dilute mix of Chromic acid, let it dry and polish with wire brush then wipe it down with lube oil and polish by hand.  Most was in the bildge area and that with brass and the copper fittengs on the emergency diesel a daily wipe down with a rag kept the lines and fittings bright.  Good entertainment on a 78 day patrol.  So brnze silcone or SS screws it will be.  Did get seat stringers started.  Longs ones in place along with the forward bulkhead seat stringer fitting in quite well.  I love the Fein multitool, talk about high speed sanding, found out that you should NOT use the mini-sander at real high speed, first time user.  It heated up and melted the plastic clamp and the thing blew apart.  Got carried away on that one.  Opps  :

Thanks for the input

Jim :

[PAR]

Naval brass is actually bronze.

[PAR]

A typical naval brass mixture would be 58 to 60% copper, 38 to 40% zinc and 1 to 4% tin. The large zinc and lower copper content is why it's called brass. Regular brass is normally 65% copper and 35% zinc. The lowest copper content in a bronze that I've seen is "bell metal" with is about 75% copper, 25% tin. This bronze is relatively cheap to make and produces a rigid but fairly weak metal. A good material would be something like "gun metal" bronze, which is 87% copper, 10% tin and 3% zinc. This metal is very strong and machinable.

Machinability is brass's weak point other then it's inability to resist corrosion in the marine environment. Brass will not "stand" before a tool (cutting edge) which is why it's often cast.

I had to compensate for the screw up on pan head/oval headed fasteners, Ray.

[polybier]

Hi,

This is Polybier Ho from Eagleeyes Hardware which sepcialize in making brass & silicon bronze cut thread wood screw in China.

The types of Our cut thread wood screws are as follow.

Brass cut thread wood screw

Types: Slotted flat head , Slotted oval head, Slotted round head, phillips flat head, phillips oval head, square flat head, etc.

Size: 0#-14#

Length: 1/4"-4"

Silicon bronze cut thread wood screw

Types: Slotted flat head , Slotted oval head, Slotted round head, phillips flat head, phillips oval head, frearson flat head, frearson oval head, square flat head, etc.

Size: 4#-24#

Length: 1/4"-6"

SS18-8 cut thread wood screw

Types: Slotted flat head , Slotted oval head, Slotted round head, etc.

Size: 4#-24#

Length: 1/2"-4"

They are mainly used in marine industry & wooden boat building and repairing.

I think they are what you are looking for.

If you are interested in them, please contact me.

Polybier Ho

Eagleeyes Hardware

http://www.eagleeyes-hardware.com.cn

master@eagleeyes-hardware.com.cn

Tel & Fax: 86-757-86770092

[ecgossett]

Jim,

Don't know what sub you where on but on the Tridents we have lots of brass... Little things called scuppers, torpedo tubs and associated pipes, and MHC (missile heating and cooling) system, for the tubes. The scuppers turn nasty colors after we do a sea sensing header blowdown.

Personally, I use some red tobasco sauce to clean them.. Back in the day bug juice was used, it can also clean toilets. Some people use Coke-Cola to clean brass with.