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Hi Egon,
This is Tony from Tony's Screws. All of our screws are Grade 12.9 black oxide alloy steel. They have a tensile strength of over 180,000 psi. They are the strongest screws you can buy for our R/C applications. Unfortunately alloy steel is not rust proof. Titanium and stainless steel hardware offer rust resistance but they are much weaker and prone to breaking, bending or stripping out. Titanium has a reasonable tensile strength (not as high as Grade 12.9 alloy steel) and are lighter i[More…] |
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