I just read vacuumsage's reply, and I would like to have some contacts since I an immediate application that would require good resistance to the elements.
Is the screw case hardened steel and the metal siding aluminum? This could cause a galvanic reaction leading to hydrogen embrittlement in the screw, causing the head to separate under load. The aluminum would be sacrificial and would ultimately also show signs of corrosion.
Reply to Shmulik:
This is what I want, but for metals. To be more specific, if I input ASTM A325 Type 1, I wish to see the following:
Most Common Possible Metals:
C1030-C1052
In a perfect world, I would also like to see this as well.
Specifications with similar materials,mechanical...
Looking for a Fastener specification cross-reference to base materials. Typically, one would go to a standard, i.e. ASTM and it provides a table of acceptable metal chemistry to produce in accordance with a fastener specification. Then you must consult with a metallurgist and a metals...