I have just made a pair of garden gates in Iroko and I'm intending to use Sadolin Classic (1 coat) and Sadolin Extra (2 coats) to finish them off. On reading the small print on both products it states that only non-ferrous screws nails and fastenings should be used.
I have used some zinc yellow passivated screws on my gates to fix the T&G facing boards to the gate structure.
I would be happy to change the screws for brass, but can't find any on t'internet. I need 4 x 45mm countersunk, posidrive preferably. (In a reasonable quantity, say a couple of dozen!)
What will be the effect, in the short term and long term, of leaving the screws in place and just going ahead with the Sadolin? Only the screw heads are showing, so there is minimal contact area between the screws and the finish.
Unfortunately because of the virus, Sadolin have temporarily suspended their technical advice line.

Cheers
Pete

In article ,
petek wrote:

I have just made a pair of garden gates in Iroko and I'm intending to use
Sadolin Classic (1 coat) and Sadolin Extra (2 coats) to finish them off.
On reading the small print on both products it states that only
non-ferrous screws nails and fastenings should be used.

I have used some zinc yellow passivated screws on my gates to fix the T&G
facing boards to the gate structure. I would be happy to change the
screws for brass, but can't find any on t'internet. I need 4 x 45mm
countersunk, posidrive preferably. (In a reasonable quantity, say a
couple of dozen!)

At the end of last year I got some brass screws from "Bit of Brass".
www.abitofbrass.co.uk They might have something suitable

--
from KT24 in Surrey, England
"I'd rather die of exhaustion than die of boredom" Thomas Carlyle

I have just made a pair of garden gates in Iroko and I'm intending to use
Sadolin Classic (1 coat) and Sadolin Extra (2 coats) to finish them off.
On reading the small print on both products it states that only
non-ferrous screws nails and fastenings should be used.

I have used some zinc yellow passivated screws on my gates to fix the T&G
facing boards to the gate structure. I would be happy to change the
screws for brass, but can't find any on t'internet. I need 4 x 45mm
countersunk, posidrive preferably. (In a reasonable quantity, say a
couple of dozen!)

At the end of last year I got some brass screws from "Bit of Brass".
www.abitofbrass.co.uk They might have something suitable

--
from KT24 in Surrey, England
"I'd rather die of exhaustion than die of boredom" Thomas Carlyle

Thanks for the link. Unfortunately the size of screw I need isn't listed. Really interesting site though!

In article ,
petek wrote:
I have just made a pair of garden gates in Iroko and I'm intending to
use Sadolin Classic (1 coat) and Sadolin Extra (2 coats) to finish them
off. On reading the small print on both products it states that only
non-ferrous screws nails and fastenings should be used. I have used some
zinc yellow passivated screws on my gates to fix the T&G facing boards
to the gate structure. I would be happy to change the screws for brass,
but can't find any on t'internet. I need 4 x 45mm countersunk, posidrive
preferably. (In a reasonable quantity, say a couple of dozen!) What will
be the effect, in the short term and long term, of leaving the screws in
place and just going ahead with the Sadolin? Only the screw heads are
showing, so there is minimal contact area between the screws and the
finish. Unfortunately because of the virus, Sadolin have temporarily
suspended their technical advice line.

It's because Sadolin is water based. If you can't get brass screws, put a
dab of thinned clear spirit based varnish over the screws. Make sure it is
thoroughly dry before using the Sadolin.

You might find stainless steel screws easier to find than brass these days.

--
*You! Off my planet!

Dave Plowman London SW
To e-mail, change noise into sound.

On Tue, 16 Jun 2020 09:12:32 -0700 (PDT), petek wrote:

I have used some zinc yellow passivated screws on my gates to fix the
T&G facing boards to the gate structure.

Steel of any form is useless outdoors. Brass or stainless only, brass
by preferance, stainless is a bit brittle.

I need 4 x 45mm countersunk, posidrive preferably.

Toolstation list 1 3/4" No 8 slotted brass, £8.84/200, unfortunately
OOS for collection or delivery.

B&Q list 4 x 40 £5.37 or 4 x 50 £5.65 brass pozi packs of 25.

What will be the effect, in the short term and long term, of leaving the
screws in place and just going ahead with the Sadolin?

Irespective of the Sadolin they'll rust... Does iroko really need
treatment anyway?

--
Cheers
Dave.

On Tuesday, June 16, 2020 at 9:30:11 PM UTC+1, Dave Liquorice wrote:
On Tue, 16 Jun 2020 09:12:32 -0700 (PDT), petek wrote:

I have used some zinc yellow passivated screws on my gates to fix the
T&G facing boards to the gate structure.

Steel of any form is useless outdoors. Brass or stainless only, brass
by preferance, stainless is a bit brittle.

I need 4 x 45mm countersunk, posidrive preferably.

Toolstation list 1 3/4" No 8 slotted brass, £8.84/200, unfortunately
OOS for collection or delivery.

B&Q list 4 x 40 £5.37 or 4 x 50 £5.65 brass pozi packs of 25.

What will be the effect, in the short term and long term, of leaving the
screws in place and just going ahead with the Sadolin?

Irespective of the Sadolin they'll rust... Does iroko really need
treatment anyway?

--
Cheers
Dave.

Thanks to both Dave's for helpful comments.
Yes, Iroko is a very durable hardwood (similar to Teak) but turns a grey colour with age. I want to retain the natural golden brown colour, hence the Sadolin treatment.
I don't really understand why steel screws would be susceptible to rust as the length of the screw would be protected within the timber (Iroko is naturally oily) and only the top of the head exposed to air and water. Hence my question about short & long term effect. I thought there may be some possible discolouration effect similar to steel screws in oak, or perhaps some other obscure chemical reaction would affect the screws or timber. If just the top of the head turns a bit rusty, it wouldn't be too noticeable and I could possibly live with that. They're zinc passivated so maybe that would hinder corrosion a bit.
Anyway, to be on the safe side, I'm going to get some 4 x 40mm brass from B&Q tomorrow in the hope they'll be long enough. The gate frame is 30mm thick so that leaves only 10mm to enter the facing boards which themselves are 18mm thick, but maybe with a deep countersink that will be OK.
If that fails I like the idea of a drop of clear lacquer on the head of each screw.
Cheers
Pete

On Tuesday, 16 June 2020 21:30:11 UTC+1, Dave Liquorice wrote:
On Tue, 16 Jun 2020 09:12:32 -0700 (PDT), petek wrote:

I have used some zinc yellow passivated screws on my gates to fix the
T&G facing boards to the gate structure.

Steel of any form is useless outdoors. Brass or stainless only, brass
by preferance, stainless is a bit brittle.

I need 4 x 45mm countersunk, posidrive preferably.

Toolstation list 1 3/4" No 8 slotted brass, £8.84/200, unfortunately
OOS for collection or delivery.

B&Q list 4 x 40 £5.37 or 4 x 50 £5.65 brass pozi packs of 25.

What will be the effect, in the short term and long term, of leaving the
screws in place and just going ahead with the Sadolin?

Irespective of the Sadolin they'll rust... Does iroko really need
treatment anyway?

Perhaps I have been extraordinarily lucky, but I really have not had any issues with stainless screws being brittle. Indeed, I have generally found them pretty good.

In article l.net,
Dave Liquorice wrote:
Steel of any form is useless outdoors. Brass or stainless only, brass
by preferance, stainless is a bit brittle.

I'd be amazed if you could shear an SS screw before brass?

--
*Reality is the illusion that occurs due to the lack of alcohol *

Dave Plowman London SW
To e-mail, change noise into sound.

On Tue, 16 Jun 2020 14:48:06 -0700, petek wrote:

On Tuesday, June 16, 2020 at 9:30:11 PM UTC+1, Dave Liquorice wrote:
On Tue, 16 Jun 2020 09:12:32 -0700 (PDT), petek wrote:

I have used some zinc yellow passivated screws on my gates to fix the
T&G facing boards to the gate structure.

Steel of any form is useless outdoors. Brass or stainless only, brass
by preferance, stainless is a bit brittle.

I need 4 x 45mm countersunk, posidrive preferably.

Toolstation list 1 3/4" No 8 slotted brass, £8.84/200, unfortunately
OOS for collection or delivery.

B&Q list 4 x 40 £5.37 or 4 x 50 £5.65 brass pozi packs of 25.

What will be the effect, in the short term and long term, of leaving
the screws in place and just going ahead with the Sadolin?

Irespective of the Sadolin they'll rust... Does iroko really need
treatment anyway?

--
Cheers Dave.

Thanks to both Dave's for helpful comments.
Yes, Iroko is a very durable hardwood (similar to Teak) but turns a grey
colour with age. I want to retain the natural golden brown colour, hence
the Sadolin treatment.
I don't really understand why steel screws would be susceptible to rust
as the length of the screw would be protected within the timber (Iroko
is naturally oily) and only the top of the head exposed to air and
water. Hence my question about short & long term effect. I thought there
may be some possible discolouration effect similar to steel screws in
oak, or perhaps some other obscure chemical reaction would affect the
screws or timber. If just the top of the head turns a bit rusty, it
wouldn't be too noticeable and I could possibly live with that. They're
zinc passivated so maybe that would hinder corrosion a bit.
Anyway, to be on the safe side, I'm going to get some 4 x 40mm brass
from B&Q tomorrow in the hope they'll be long enough. The gate frame is
30mm thick so that leaves only 10mm to enter the facing boards which
themselves are 18mm thick, but maybe with a deep countersink that will
be OK.
If that fails I like the idea of a drop of clear lacquer on the head of
each screw.
Cheers Pete

Counterbore the holes and fill them with putty.

In message ,
polygonum_on_google writes
On Tuesday, 16 June 2020 21:30:11 UTC+1, Dave Liquorice wrote:
On Tue, 16 Jun 2020 09:12:32 -0700 (PDT), petek wrote:

I have used some zinc yellow passivated screws on my gates to fix the
T&G facing boards to the gate structure.

Steel of any form is useless outdoors. Brass or stainless only, brass
by preferance, stainless is a bit brittle.

I need 4 x 45mm countersunk, posidrive preferably.

Toolstation list 1 3/4" No 8 slotted brass, £8.84/200, unfortunately
OOS for collection or delivery.

B&Q list 4 x 40 £5.37 or 4 x 50 £5.65 brass pozi packs of 25.

What will be the effect, in the short term and long term, of leaving the
screws in place and just going ahead with the Sadolin?

Irespective of the Sadolin they'll rust... Does iroko really need
treatment anyway?

Perhaps I have been extraordinarily lucky, but I really have not had
any issues with stainless screws being brittle. Indeed, I have
generally found them pretty good.

Now try undoing a few!


--
Tim Lamb

On 16/06/2020 22:48, petek wrote:
On Tuesday, June 16, 2020 at 9:30:11 PM UTC+1, Dave Liquorice wrote:
On Tue, 16 Jun 2020 09:12:32 -0700 (PDT), petek wrote:

I have used some zinc yellow passivated screws on my gates to fix
the T&G facing boards to the gate structure.

Steel of any form is useless outdoors. Brass or stainless only,
brass by preferance, stainless is a bit brittle.

I need 4 x 45mm countersunk, posidrive preferably.

Toolstation list 1 3/4" No 8 slotted brass, £8.84/200,
unfortunately OOS for collection or delivery.

B&Q list 4 x 40 £5.37 or 4 x 50 £5.65 brass pozi packs of 25.

What will be the effect, in the short term and long term, of
leaving the screws in place and just going ahead with the
Sadolin?

Irespective of the Sadolin they'll rust... Does iroko really need
treatment anyway?

Thanks to both Dave's for helpful comments. Yes, Iroko is a very
durable hardwood (similar to Teak) but turns a grey colour with age.
I want to retain the natural golden brown colour, hence the Sadolin
treatment. I don't really understand why steel screws would be
susceptible to rust as the length of the screw would be protected
within the timber (Iroko is naturally oily) and only the top of the
head exposed to air and water. Hence my question about short & long
term effect. I thought there may be some possible discolouration
effect similar to steel screws in oak, or perhaps some other obscure
chemical reaction would affect the screws or timber. If just the top
of the head turns a bit rusty, it wouldn't be too noticeable and I
could possibly live with that. They're zinc passivated so maybe that
would hinder corrosion a bit. Anyway, to be on the safe side, I'm
going to get some 4 x 40mm brass from B&Q tomorrow in the hope
they'll be long enough. The gate frame is 30mm thick so that leaves
only 10mm to enter the facing boards which themselves are 18mm thick,
but maybe with a deep countersink that will be OK. If that fails I
like the idea of a drop of clear lacquer on the head of each screw.
Cheers Pete

Iroko is almost as good as opepe in terms of surviving in the weather.
Unless the screws are stainless steel they will rust and expand which
will damage the wood. These oily hardwoods are brittle so it is worth
using either stainless or brass fittings.

They all turn grey eventually due to UV exposure but the weathering is
only skin deep. I would seriously use an external use oil on it rather
than modern water formulation of Sadolin which IME tends to be somewhat
opaque and flakes off oily hardwood in a messy fashion after a few years
outside - at least that it what it did on our outdoors VH furniture.

The best outdoor system I found was some spirit based Dutch stuff from a
Dulux decorator centre - I forget the exact name. It was expensive but
it was also the only one that really stood up to continuous outdoor
exposure really well. It doesn't seem to be available any more

But they do still have a decent range of outdoor oil based stuff.

https://www.duluxdecoratorcentre.co....ls-preservers/

--
Regards,
Martin Brown

On 17/06/2020 09:02, Tim Lamb wrote:
In message ,
polygonum_on_google writes
On Tuesday, 16 June 2020 21:30:11 UTC+1, Dave LiquoriceÂ* wrote:
On Tue, 16 Jun 2020 09:12:32 -0700 (PDT), petek wrote:

I have used some zinc yellow passivated screws on my gates to fix the
T&G facing boards to the gate structure.

Steel of any form is useless outdoors. Brass or stainless only, brass
by preferance, stainless is a bit brittle.

I need 4 x 45mm countersunk, posidrive preferably.

Toolstation list 1 3/4" No 8 slotted brass, £8.84/200, unfortunately
OOS for collection or delivery.

B&Q list 4 x 40 £5.37 or 4 x 50 £5.65 brass pozi packs of 25.

What will be the effect, in the short term and long term, of
leaving the
screws in place and just going ahead with the Sadolin?

Irespective of the Sadolin they'll rust... Does iroko really need
treatment anyway?

Perhaps I have been extraordinarily lucky, but I really have not had
any issues with stainless screws being brittle. Indeed, I have
generally found them pretty good.

Now try undoing a few!


+1 (or that should probably be about +10, the bu&&ers break very easily
and it's a pain to get the end out, plug the hole and start again)

On 17/06/2020 09:37, Martin Brown wrote:
On 16/06/2020 22:48, petek wrote:
On Tuesday, June 16, 2020 at 9:30:11 PM UTC+1, Dave Liquorice wrote:
On Tue, 16 Jun 2020 09:12:32 -0700 (PDT), petek wrote:

I have used some zinc yellow passivated screws on my gates to fix
the T&G facing boards to the gate structure.

Steel of any form is useless outdoors. Brass or stainless only,
brass by preferance, stainless is a bit brittle.

I need 4 x 45mm countersunk, posidrive preferably.

Toolstation list 1 3/4" No 8 slotted brass, £8.84/200,
unfortunately OOS for collection or delivery.

B&Q list 4 x 40 £5.37 or 4 x 50 £5.65 brass pozi packs of 25.

What will be the effect, in the short term and long term, of
leaving the screws in place and just going ahead with the
Sadolin?

Irespective of the Sadolin they'll rust... Does iroko really need
treatment anyway?

Thanks to both Dave's for helpful comments. Yes, Iroko is a very
durable hardwood (similar to Teak) but turns a grey colour with age.
I want to retain the natural golden brown colour, hence the Sadolin
treatment. I don't really understand why steel screws would be
susceptible to rust as the length of the screw would be protected
within the timber (Iroko is naturally oily) and only the top of the
head exposed to air and water. Hence my question about short & long
term effect. I thought there may be some possible discolouration
effect similar to steel screws in oak, or perhaps some other obscure
chemical reaction would affect the screws or timber. If just the top
of the head turns a bit rusty, it wouldn't be too noticeable and I
could possibly live with that. They're zinc passivated so maybe that
would hinder corrosion a bit. Anyway, to be on the safe side, I'm
going to get some 4 x 40mm brass from B&Q tomorrow in the hope
they'll be long enough. The gate frame is 30mm thick so that leaves
only 10mm to enter the facing boards which themselves are 18mm thick,
but maybe with a deep countersink that will be OK. If that fails I
like the idea of a drop of clear lacquer on the head of each screw.
Cheers Pete

Iroko is almost as good as opepe in terms of surviving in the weather.
Unless the screws are stainless steel they will rust and expand which
will damage the wood. These oily hardwoods are brittle so it is worth
using either stainless or brass fittings.

They all turn grey eventually due to UV exposure but the weathering is
only skin deep. I would seriously use an external use oil on it rather
than modern water formulation of Sadolin which IME tends to be somewhat
opaque and flakes off oily hardwood in a messy fashion after a few years
outside - at least that it what it did on our outdoors VH furniture.

The best outdoor system I found was some spirit based Dutch stuff from a
Dulux decorator centre - I forget the exact name. It was expensive but
it was also the only one that really stood up to continuous outdoor
exposure really well. It doesn't seem to be available any more

But they do still have a decent range of outdoor oil based stuff.

https://www.duluxdecoratorcentre.co....ls-preservers/


I agree. I'm a great fan of Osmo.

On Wednesday, June 17, 2020 at 10:37:22 AM UTC+1, wrote:
On 17/06/2020 09:37, Martin Brown wrote:
On 16/06/2020 22:48, petek wrote:
On Tuesday, June 16, 2020 at 9:30:11 PM UTC+1, Dave Liquorice wrote:
On Tue, 16 Jun 2020 09:12:32 -0700 (PDT), petek wrote:

I have used some zinc yellow passivated screws on my gates to fix
the T&G facing boards to the gate structure.

Steel of any form is useless outdoors. Brass or stainless only,
brass by preferance, stainless is a bit brittle.

I need 4 x 45mm countersunk, posidrive preferably.

Toolstation list 1 3/4" No 8 slotted brass, £8.84/200,
unfortunately OOS for collection or delivery.

B&Q list 4 x 40 £5.37 or 4 x 50 £5.65 brass pozi packs of 25.

What will be the effect, in the short term and long term, of
leaving the screws in place and just going ahead with the
Sadolin?

Irespective of the Sadolin they'll rust... Does iroko really need
treatment anyway?

Thanks to both Dave's for helpful comments. Yes, Iroko is a very
durable hardwood (similar to Teak) but turns a grey colour with age.
I want to retain the natural golden brown colour, hence the Sadolin
treatment. I don't really understand why steel screws would be
susceptible to rust as the length of the screw would be protected
within the timber (Iroko is naturally oily) and only the top of the
head exposed to air and water. Hence my question about short & long
term effect. I thought there may be some possible discolouration
effect similar to steel screws in oak, or perhaps some other obscure
chemical reaction would affect the screws or timber. If just the top
of the head turns a bit rusty, it wouldn't be too noticeable and I
could possibly live with that. They're zinc passivated so maybe that
would hinder corrosion a bit. Anyway, to be on the safe side, I'm
going to get some 4 x 40mm brass from B&Q tomorrow in the hope
they'll be long enough. The gate frame is 30mm thick so that leaves
only 10mm to enter the facing boards which themselves are 18mm thick,
but maybe with a deep countersink that will be OK. If that fails I
like the idea of a drop of clear lacquer on the head of each screw.
Cheers Pete

Iroko is almost as good as opepe in terms of surviving in the weather.
Unless the screws are stainless steel they will rust and expand which
will damage the wood. These oily hardwoods are brittle so it is worth
using either stainless or brass fittings.

They all turn grey eventually due to UV exposure but the weathering is
only skin deep. I would seriously use an external use oil on it rather
than modern water formulation of Sadolin which IME tends to be somewhat
opaque and flakes off oily hardwood in a messy fashion after a few years
outside - at least that it what it did on our outdoors VH furniture.

The best outdoor system I found was some spirit based Dutch stuff from a
Dulux decorator centre - I forget the exact name. It was expensive but
it was also the only one that really stood up to continuous outdoor
exposure really well. It doesn't seem to be available any more

But they do still have a decent range of outdoor oil based stuff.

https://www.duluxdecoratorcentre.co....ls-preservers/


I agree. I'm a great fan of Osmo.

I've been looking at Osmo as you have mentioned it, and I'm now thinking of using this instead of the Sadolin system. It's much cheaper. According to their website, the Sadolin system with 2 coats is expected to last about 4 years before a fresh maintenance coat is required. Have you any experience how long Osmo will last?
Still need to use non-ferrous screws with Osmo!

On 17/06/2020 13:45, petek wrote:
On Wednesday, June 17, 2020 at 10:37:22 AM UTC+1, wrote:
On 17/06/2020 09:37, Martin Brown wrote:
On 16/06/2020 22:48, petek wrote:
On Tuesday, June 16, 2020 at 9:30:11 PM UTC+1, Dave Liquorice wrote:
On Tue, 16 Jun 2020 09:12:32 -0700 (PDT), petek wrote:

I have used some zinc yellow passivated screws on my gates to fix
the T&G facing boards to the gate structure.

Steel of any form is useless outdoors. Brass or stainless only,
brass by preferance, stainless is a bit brittle.

I need 4 x 45mm countersunk, posidrive preferably.

Toolstation list 1 3/4" No 8 slotted brass, £8.84/200,
unfortunately OOS for collection or delivery.

B&Q list 4 x 40 £5.37 or 4 x 50 £5.65 brass pozi packs of 25.

What will be the effect, in the short term and long term, of
leaving the screws in place and just going ahead with the
Sadolin?

Irespective of the Sadolin they'll rust... Does iroko really need
treatment anyway?

Thanks to both Dave's for helpful comments. Yes, Iroko is a very
durable hardwood (similar to Teak) but turns a grey colour with age.
I want to retain the natural golden brown colour, hence the Sadolin
treatment. I don't really understand why steel screws would be
susceptible to rust as the length of the screw would be protected
within the timber (Iroko is naturally oily) and only the top of the
head exposed to air and water. Hence my question about short & long
term effect. I thought there may be some possible discolouration
effect similar to steel screws in oak, or perhaps some other obscure
chemical reaction would affect the screws or timber. If just the top
of the head turns a bit rusty, it wouldn't be too noticeable and I
could possibly live with that. They're zinc passivated so maybe that
would hinder corrosion a bit. Anyway, to be on the safe side, I'm
going to get some 4 x 40mm brass from B&Q tomorrow in the hope
they'll be long enough. The gate frame is 30mm thick so that leaves
only 10mm to enter the facing boards which themselves are 18mm thick,
but maybe with a deep countersink that will be OK. If that fails I
like the idea of a drop of clear lacquer on the head of each screw.
Cheers Pete

Iroko is almost as good as opepe in terms of surviving in the weather.
Unless the screws are stainless steel they will rust and expand which
will damage the wood. These oily hardwoods are brittle so it is worth
using either stainless or brass fittings.

They all turn grey eventually due to UV exposure but the weathering is
only skin deep. I would seriously use an external use oil on it rather
than modern water formulation of Sadolin which IME tends to be somewhat
opaque and flakes off oily hardwood in a messy fashion after a few years
outside - at least that it what it did on our outdoors VH furniture.

The best outdoor system I found was some spirit based Dutch stuff from a
Dulux decorator centre - I forget the exact name. It was expensive but
it was also the only one that really stood up to continuous outdoor
exposure really well. It doesn't seem to be available any more

But they do still have a decent range of outdoor oil based stuff.

https://www.duluxdecoratorcentre.co....ls-preservers/


I agree. I'm a great fan of Osmo.

I've been looking at Osmo as you have mentioned it, and I'm now thinking of using this instead of the Sadolin system. It's much cheaper. According to their website, the Sadolin system with 2 coats is expected to last about 4 years before a fresh maintenance coat is required. Have you any experience how long Osmo will last?
Still need to use non-ferrous screws with Osmo!

How long will it last? - it depends on exposure, wood and other
un-knowables, but one of the nice things about oil is it's very easy to
top-up or repair the finish.
The oil isn't going to protect the screws. However, as you're using
iroko, you could counterbore the hole for the screw head and then plug
it with a bit of iroko. If you do this you wouldn't need s/s or brass
screws and, if you get the grain in the right direction, the plug will
almost disappear once everything's sanded and oiled.
In case you're wondering, if you try this in Oak you'll eventually get
dark marks around the plug; s/s or brass screws are essential.

Tim Lamb Wrote in message:
In message ,
polygonum_on_google writes
On Tuesday, 16 June 2020 21:30:11 UTC+1, Dave Liquorice wrote:
On Tue, 16 Jun 2020 09:12:32 -0700 (PDT), petek wrote:

I have used some zinc yellow passivated screws on my gates to fix the
T&G facing boards to the gate structure.

Steel of any form is useless outdoors. Brass or stainless only, brass
by preferance, stainless is a bit brittle.

I need 4 x 45mm countersunk, posidrive preferably.

Toolstation list 1 3/4" No 8 slotted brass, £8.84/200, unfortunately
OOS for collection or delivery.

B&Q list 4 x 40 £5.37 or 4 x 50 £5.65 brass pozi packs of 25.

What will be the effect, in the short term and long term, of leaving the
screws in place and just going ahead with the Sadolin?

Irespective of the Sadolin they'll rust... Does iroko really need
treatment anyway?

Perhaps I have been extraordinarily lucky, but I really have not had
any issues with stainless screws being brittle. Indeed, I have
generally found them pretty good.

Now try undoing a few!



+1 :)
--
Jimk


----Android NewsGroup Reader----
http://usenet.sinaapp.com/

On Wed, 17 Jun 2020 00:05:33 +0100, Dave Plowman (News) wrote:

Steel of any form is useless outdoors. Brass or stainless only,
brass
by preferance, stainless is a bit brittle.

I'd be amazed if you could shear an SS screw before brass?

They went in OK but the failed in use fairly clean break. They were
holding a bit of wood with a gutter bracket attached so there would
be some movement. Replaced with brass of the same size they haven't
failed, well I haven't checked recently but the flapping gutter is a
bit of a give away. B-)

Vague memories of other breakages. Enough that the stainless are only
used for non-critical things. Brass being used for everything else.

--
Cheers
Dave.

On Wed, 17 Jun 2020 22:28:06 +0100 (BST), Dave Liquorice wrote:

On Wed, 17 Jun 2020 00:05:33 +0100, Dave Plowman (News) wrote:

Steel of any form is useless outdoors. Brass or stainless only,
brass
by preferance, stainless is a bit brittle.

I'd be amazed if you could shear an SS screw before brass?

They went in OK but the failed in use fairly clean break. They were
holding a bit of wood with a gutter bracket attached so there would
be some movement. Replaced with brass of the same size they haven't
failed, well I haven't checked recently but the flapping gutter is a
bit of a give away. B-)

Vague memories of other breakages. Enough that the stainless are only
used for non-critical things. Brass being used for everything else.

When I built my shed I used st. st. fasteners as much as I could. For the
main members 6mmx100mm Turbo Ultra. Even with a 4mm pilot hole in softwood a
Powercraft 14.4V drill, bought about 12 years ago, so low torque, would
shear some - had to go to clearance and 5mm pilot. Also I don't like
'machining' threads - OK 'til need to remove then replace a screw then a
load of wood comes out.
However, when I replaced the roof on another shed I used st. st. round-head
screws in place nails, reasonable pilot hole and no problems. Perhaps the
screws are better quality - the weren't from SF or TS.
--
Peter.
The gods will stay away
whilst religions hold sway

Personally depending on whether the screws were scratched during insertion,
the plating should be fine I think. Maybe find something to dob on the
screw heads which will serve as an undercoat, but look inconspicuous.
Brian

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This newsgroup posting comes to you directly from...
The Sofa of Brian Gaff...

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Note this Signature is meaningless.!
"petek" wrote in message
...


I have just made a pair of garden gates in Iroko and I'm intending to
use
Sadolin Classic (1 coat) and Sadolin Extra (2 coats) to finish them
off.
On reading the small print on both products it states that only
non-ferrous screws nails and fastenings should be used.

I have used some zinc yellow passivated screws on my gates to fix the
T&G
facing boards to the gate structure. I would be happy to change the
screws for brass, but can't find any on t'internet. I need 4 x 45mm
countersunk, posidrive preferably. (In a reasonable quantity, say a
couple of dozen!)

At the end of last year I got some brass screws from "Bit of Brass".
www.abitofbrass.co.uk They might have something suitable

--
from KT24 in Surrey, England
"I'd rather die of exhaustion than die of boredom" Thomas Carlyle

Thanks for the link. Unfortunately the size of screw I need isn't listed.
Really interesting site though!

On 16/06/2020 22:48, petek wrote:
Anyway, to be on the safe side, I'm going to get some 4 x 40mm brass from B&Q tomorrow in the hope they'll be long enough.

I've used SS on my boat for years, and never had a problem with them
shearing. In fact the only time I've had trouble with screws shearing
was when I bought some cheap ones from a shed... Never again.

Andy