How is Biltema's decking screw with Ruspert treatment

[YWa]

Biltema has a decking screw that is said to have corrosion class C4 That puts it in the class of stainless steel. Can it really be true?

I'm going to build a "walkway" around the patio with short planks. That will require a lot of screws

The link to Biltema's screw
http://www.biltema.se/sv/Bygg/Fastelement/Trallskruv/RuspertMagsho/Trallskruv-2000036310/

 

[Dan_Johansson]

The short black one is "no". Cheap non-stainless screw does not equal a stainless screw. Not even an expensive one seems to do it.

 

[rävlyan]

There was a pure stainless screw at BT but it was very soft and bent easily when you screwed and pressed, don't know if they have another now, check out some other brands, a bit more expensive but better.

 

[YWa]

There was a pure stainless steel screw at BT but it was very soft and bent easily when you screwed and pressed, don't know if they have others now, Check some other brands, a bit more expensive but better

There was a pure stainless steel screw at BT but it was very soft and bent easily when you screwed and pressed, don't know if they have others now, Check some other brands, a bit more expensive but better

Thanks for the answer
For someone who is not so experienced, you just see something is more expensive, but don't know for sure if something is better
BT has two types of RF deck screws, an A2 and an A4.
Bauhaus, which is located next to BT, has RF screws from Essve which are probably better but much more expensive.
I will probably go with BT's RF screws

 

[YWa]

The short black is "no." Cheap non-stainless screws do not equal stainless screws. Not even expensive ones seem to do so.

Thanks for the answer. Common sense says you must be right

 

[roli]

Thanks for the reply
For someone not so experienced, you only see something is more expensive but can't be sure if something is better
BT has two types of RF decking screws, an A2 and an A4.
Bauhaus, which is next to BT, has among others RF screws from Essve which are probably better but much more expensive.
I'll probably go for BT's RF screws

A2 = stainless screw, probably what Bauhaus means by RF.
A4 = stainless acid-resistant screw better than A2 quality.

A2 quality is sufficient for deck construction, a little cheaper than A4 as well.

 

[mexitegel]

Never, never, never, never, never screw decking boards with anything other than RF screws. I've done it, and they break continuously as the decking boards move between seasons. The RF screw is softer and handles this much better.

Did I mention that you should never screw decking with anything other than RF?

 

[roli]

Additionally, choose screws with Torx fittings and not star screws like PH or PZ types. The latter break more easily than screws with Torx.

 

[NEO_AMiGA]

Do we have any opinions for 2023/2024 on Biltema's Stainless A4 decking screws?

https://www.biltema.se/bygg/fastelement/trallskruvar/trallskruv-2000022112

 

[Jocce81]

Do we have any opinions on Biltema's Stainless A4 decking screws for 2023/2024?

[link]

If it's the same as I bought last year, then Jula's own are better, at least in durability when screwing them in.
Hornbach's cheapest were even worse, with many screws already bent in the packaging...

The downside with Biltema is that they can also change suppliers at any time without notice, so if the screws are good today, the boxes you buy tomorrow can be much worse. Or better for that matter...

/Jocce

 

[NEO_AMiGA]

If it's the same as what I bought last year, Julas' own is better, at least in durability when screwing them in.
Hornbach's cheapest was even worse where many screws were warped already in the package...

The downside with Biltema is that they can also change suppliers at any time without notifying, so if the screws are good today, the boxes you buy tomorrow can be much worse. Or better for that matter...


/Jocce

Aaaah! Thanks for the feedback 🙏