In addition to our new SIHGA fixings we continue to supply screws produced from grade 304 stainless steel, offering improved corrosion protection.
Simpson Strong Tie trimmed head external timber screws are made of grade 304 (A2) stainless steel, it is most commonly used in areas subjected to use class 3.2 i.e. facades subjected to frequent periods of wetting.
We would always recommend selecting the appropriate stainless steel grade as a screw / nail material to avoid unsightly staining to your timber.
This product can be used with all of Russwood's timber cladding species and is available in sizes 41mm, 57mm, 76mm.
We also keep stock of decking screws in grade 316 (A4) stainless steel for marine applications.
Stainless steel is the name given to a family of corrosion resistant steels (not corrosion proof) containing a minimum of 10.5% chromium.
There are three main grades of stainless steel used for screws; 410, 304 and 316, each has different properties that make them ideal in the correct situation grade 410 is most widely used in Central Europe for general applications.
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