On Wed, 28 Dec 2011 17:30:31 -0000, The Medway Handyman wrote:

On 28/12/2011 16:00, Lieutenant Scott wrote:
On Wed, 28 Dec 2011 03:34:45 -0000, thirty-six
wrote:

On Dec 28, 1:51 am, "Rick Hughes"
wrote:
"Lieutenant Scott" wrote in message

news[email protected] go out of my way to get pozidrive
screws - what's the big idea with
people still using straight ones? Eg in sockets.

Pozidrive selfcentres, and doesn't slip out. And I find it's less
likely
to burr.

Yes torx would be even better, but pozidrive is a start.

Even more annoying ius when they are cross haed of inderterminate
type ...

Reed and Prince is one sufficiently different (thinner) from a
Philip's to warrant a seperate driver and there was another which was
like the pozi dimensionally but without the gripper and this could be
made from a Philip's driver by filing back.
I came across another simple cross head "common" design in electrical
and cabinet work in which the blade thickness of the driver narrowed
to the edge of the screw head but can't remenber the name of this one
either.

I've never found a screw which doesn't fit a pozi or philips driver well.

They are not interchangeable especially if you are using an impact driver.

You can use a philips on a pozidrive if you are careful, but if you have both drivers, the other screws work fine on one of them.

no extra x so they they be phillips ... yet angle is wrong and Phillipos
drivers simply cam out.

Sometimes it's just a truncated philips head that is required, touch
the end of the driver with a grinder.

As to why we won;t go all Pozi ... simple, US uses choses not to use
Pozi.

GKN have the rights to it.

Millions of people are making pozis, I can't see there being a rights
problem.

Anyway how did they manage to patent something which is not
significantly different to a philips?

They are significantly different. Phillips were designed to cam out,
pozi weren't.

What do you mean?

--
http://petersparrots.com
http://petersphotos.com

We were supposed to have flying cars in the 21st century.
The Internet is cool, but I'd rather have a flying car.

"Lieutenant Scott" wrote in message
newsp.v67irfooytk5n5@i7-940...

Anyway how did they manage to patent something which is not significantly
different to a philips?

Philips were designed to cam out.
Posi were designed not to cam out.
Pretty different AFAICS.

On Wed, 28 Dec 2011 01:51:42 -0000, Rick Hughes wrote:


"Lieutenant Scott" wrote in message
newsp.v650f0lsytk5n5@i7-940...
I go out of my way to get pozidrive screws - what's the big idea with
people still using straight ones? Eg in sockets.

Pozidrive selfcentres, and doesn't slip out. And I find it's less likely
to burr.

Yes torx would be even better, but pozidrive is a start.

Even more annoying ius when they are cross haed of inderterminate type ...
no extra x so they they be phillips ... yet angle is wrong and Phillipos
drivers simply cam out.

I just look at the angle of the screw and select the correct driver. You need good eyesight like me though.

As to why we won;t go all Pozi ... simple, US uses choses not to use Pozi.

I look forward to them becoming a third world country.

--
http://petersparrots.com
http://petersphotos.com

If you are going to try cross-country skiing, start with a small country.

On Wed, 28 Dec 2011 15:59:24 -0000 Lieutenant Scott wrote :
As to why we won;t go all Pozi ... simple, US uses choses not to use Pozi.

I look forward to them becoming a third world country.

As far as building is concerned, Phillips is generally used here, square
drive occasionally. Becoming a third world country is not a current worry.

--
Tony Bryer, Greentram: 'Software to build on',
Melbourne, Australia www.greentram.com

On Wed, 28 Dec 2011 22:36:08 -0000, Tony Bryer wrote:

On Wed, 28 Dec 2011 15:59:24 -0000 Lieutenant Scott wrote :
As to why we won;t go all Pozi ... simple, US uses choses not to use Pozi.

I look forward to them becoming a third world country.

As far as building is concerned, Phillips is generally used here, square
drive occasionally. Becoming a third world country is not a current worry.

http://www.usdebtclock.org/

--
http://petersparrots.com
http://petersphotos.com

I've taken a vow of poverty. To annoy me, send money.

In article ,
says...

"Lieutenant Scott" wrote in message
newsp.v650f0lsytk5n5@i7-940...
I go out of my way to get pozidrive screws - what's the big idea with
people still using straight ones? Eg in sockets.

Pozidrive selfcentres, and doesn't slip out. And I find it's less likely
to burr.

Yes torx would be even better, but pozidrive is a start.

Even more annoying ius when they are cross haed of inderterminate type ...
no extra x so they they be phillips ... yet angle is wrong and Phillipos
drivers simply cam out.

As to why we won;t go all Pozi ... simple, US uses choses not to use Pozi.

Phillips, Pozidriv, Supadriv, Frearson, Torx etc. etc. etc.

You see the problem here?

--
Sam

On Dec 27, 8:27*pm, "Lieutenant Scott" wrote:
I go out of my way to get pozidrive screws - what's the big idea with people still using straight ones? *Eg in sockets.

Pozidrive selfcentres, and doesn't slip out. *And I find it's less likely to burr.

Yes torx would be even better, but pozidrive is a start.

--http://petersparrots.comhttp://petersphotos.com

It's an age-old truism. *Men will quickly fall asleep after having sex.
And I know why, too.
It's because they've been up half the night begging for it.

A straight screwdriver can be sharpened forever.
Pozidrive a couple of times if you're careful.

Pozidrive is only practcal on hardened screws.

The head on pozidrive is quite easy to chew up too.

"harry" wrote in message
...
On Dec 27, 8:27 pm, "Lieutenant Scott" wrote:

The head on pozidrive is quite easy to chew up too.

When using quality screws and bits/screwdriver of the correct size, they do
not chew up.

In article , Doctor Drivel wrote:

"harry" wrote in message
...
On Dec 27, 8:27 pm, "Lieutenant Scott" wrote:

The head on pozidrive is quite easy to chew up too.

When using quality screws and bits/screwdriver of the correct size, they
do not chew up.

but when someone has painted over the screw head, slotted screws can be
cleaned out before undoing - not something that can be sone with either of
the P types.

--
From KT24

Using a RISC OS computer running v5.16

On Dec 28, 9:56*am, charles wrote:
In article , Doctor Drivel wrote:
"harry" wrote in message
....
On Dec 27, 8:27 pm, "Lieutenant Scott" wrote:
The head on pozidrive is quite easy to chew up too.
When using quality screws and bits/screwdriver of the correct size, they
do not chew up.

but when someone has painted over the screw head, slotted screws can be
cleaned out before undoing - not something that can be sone with either of
the P types.

Just use a pin to get most of it out in one lump.


NT

On 28/12/2011 09:56, charles wrote:
In , Doctor Drivel wrote:

wrote in message
...
On Dec 27, 8:27 pm, "Lieutenant wrote:

The head on pozidrive is quite easy to chew up too.

When using quality screws and bits/screwdriver of the correct size, they
do not chew up.

but when someone has painted over the screw head, slotted screws can be
cleaned out before undoing - not something that can be sone with either of
the P types.

Screwdriver with a through tang, hammer - then impact driver.

--
Dave - The Medway Handyman www.medwayhandyman.co.uk

On Wed, 28 Dec 2011 08:42:32 +0000, Doctor Drivel wrote:

"harry" wrote in message

...
On Dec 27, 8:27 pm, "Lieutenant Scott" wrote:

The head on pozidrive is quite easy to chew up too.

When using quality screws and bits/screwdriver of the correct size, they
do not chew up.

That's only because you hacksaw a slot in them so that you can use your
blunt penknife.



--
Use the BIG mirror service in the UK:
http://www.mirrorservice.org

*lightning protection* - a w_tom conductor

In message , Bob Eager
wrote
On Wed, 28 Dec 2011 08:42:32 +0000, Doctor Drivel wrote:

"harry" wrote in message

...
On Dec 27, 8:27 pm, "Lieutenant Scott" wrote:

The head on pozidrive is quite easy to chew up too.

When using quality screws and bits/screwdriver of the correct size, they
do not chew up.

That's only because you hacksaw a slot in them so that you can use your
blunt penknife.


Sacrificial screwdriver method used here. Heat up the end of the
screwdriver in a flame then apply to slot or crosshead and the paint
burns out.

--
Alan
news2009 {at} admac {dot} myzen {dot} co {dot} uk

"Bob Eager" wrote in message
...
On Wed, 28 Dec 2011 08:42:32 +0000, Doctor Drivel wrote:

"harry" wrote in message

...
On Dec 27, 8:27 pm, "Lieutenant Scott" wrote:

The head on pozidrive is quite easy to chew up too.

When using quality screws and bits/screwdriver of the correct size, they
do not chew up.

That's only because you hacksaw a slot in them so that you can use your
blunt penknife.

That's a frigging good idea.

On 28/12/2011 10:54, Bob Eager wrote:
On Wed, 28 Dec 2011 08:42:32 +0000, Doctor Drivel wrote:

wrote in message

...
On Dec 27, 8:27 pm, "Lieutenant wrote:

The head on pozidrive is quite easy to chew up too.

When using quality screws and bits/screwdriver of the correct size, they
do not chew up.

That's only because you hacksaw a slot in them so that you can use your
blunt penknife.

Alas many modern screws are case hardened, and so damn hard to cut a
slot in... (small abrasive wheel in a dremmel style tool will do it though)


--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/

On Wed, 28 Dec 2011 15:56:09 -0000, John Rumm wrote:

On 28/12/2011 10:54, Bob Eager wrote:
On Wed, 28 Dec 2011 08:42:32 +0000, Doctor Drivel wrote:

wrote in message

...
On Dec 27, 8:27 pm, "Lieutenant wrote:

The head on pozidrive is quite easy to chew up too.

When using quality screws and bits/screwdriver of the correct size, they
do not chew up.

That's only because you hacksaw a slot in them so that you can use your
blunt penknife.

Alas many modern screws are case hardened, and so damn hard to cut a
slot in... (small abrasive wheel in a dremmel style tool will do it though)

I like to use more power. Use an angle grinder VERY briefly.

--
http://petersparrots.com
http://petersphotos.com

What the best way to get a guy to stop smoking after sex?
Fill his waterbed with gasoline.

Lieutenant Scott :
I go out of my way to get pozidrive screws - what's the big idea with
people still using straight ones? Eg in sockets.

Screws on electrical terminals generally have slotted heads. Perhaps
someone can explain why. Similarly they generally have very fine threads
- I don't know whether there's a connection g.

--
Mike Barnes

On Wed, 28 Dec 2011 09:15:23 -0000, Mike Barnes wrote:

Lieutenant Scott :
I go out of my way to get pozidrive screws - what's the big idea with
people still using straight ones? Eg in sockets.

Screws on electrical terminals generally have slotted heads. Perhaps
someone can explain why. Similarly they generally have very fine threads
- I don't know whether there's a connection g.

The fine threads I can understand - they move slower per turn, so presumably make a better contact.

But this has nothing to do with the shape of the head. I'd much prefer not to have my screwdriver slip off the screw and onto a live wire....

--
http://petersparrots.com
http://petersphotos.com

Whats the fastest thing in Wales?
A virgin sheep.

On 28/12/2011 15:56, Lieutenant Scott wrote:
On Wed, 28 Dec 2011 09:15:23 -0000, Mike Barnes
wrote:

Lieutenant Scott :
I go out of my way to get pozidrive screws - what's the big idea with
people still using straight ones? Eg in sockets.

Screws on electrical terminals generally have slotted heads. Perhaps
someone can explain why. Similarly they generally have very fine threads
- I don't know whether there's a connection g.

They are usually pozi on bigger terminals like MCBs etc.

The fine threads I can understand - they move slower per turn, so
presumably make a better contact.

Higher mechanical advantage, so more clamping pressure for a given torque.

But this has nothing to do with the shape of the head. I'd much prefer
not to have my screwdriver slip off the screw and onto a live wire....

One of the reasons for using VDE insulated screwdrivers....


--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/

On Fri, 30 Dec 2011 22:03:10 -0000, John Rumm wrote:

On 28/12/2011 15:56, Lieutenant Scott wrote:
On Wed, 28 Dec 2011 09:15:23 -0000, Mike Barnes
wrote:

Lieutenant Scott :
I go out of my way to get pozidrive screws - what's the big idea with
people still using straight ones? Eg in sockets.

Screws on electrical terminals generally have slotted heads. Perhaps
someone can explain why. Similarly they generally have very fine threads
- I don't know whether there's a connection g.

They are usually pozi on bigger terminals like MCBs etc.

The fine threads I can understand - they move slower per turn, so
presumably make a better contact.

Higher mechanical advantage, so more clamping pressure for a given torque.

But this has nothing to do with the shape of the head. I'd much prefer
not to have my screwdriver slip off the screw and onto a live wire....

One of the reasons for using VDE insulated screwdrivers....

My parrot chewed through that part.

--
http://petersparrots.com
http://petersphotos.com

My childbirth instructor says it's not pain I'll feel during labour, but pressure. Is she right?
Yes, in the same way that a tornado might be called an air current.

On Wed, 28 Dec 2011 09:15:23 +0000, Mike Barnes
wrote:

Screws on electrical terminals generally have slotted heads. Perhaps
someone can explain why.

They're usually brass, or monkey-knob-cheese-metal, and a Philips/Pozi
would mangle as soon as look at it.

I blame the screwdriver makers myself. I actually never saw a socket head or
posi screw till I was at least 25.. The correct screwdriver for the slot
used to help a lot though.
Brian

--
Brian Gaff -
Note:- In order to reduce spam, any email without 'Brian Gaff'
in the display name may be lost.
Blind user, so no pictures please!
"Lieutenant Scott" wrote in message
newsp.v650f0lsytk5n5@i7-940...
I go out of my way to get pozidrive screws - what's the big idea with
people still using straight ones? Eg in sockets.

Pozidrive selfcentres, and doesn't slip out. And I find it's less likely
to burr.

Yes torx would be even better, but pozidrive is a start.

--
http://petersparrots.com
http://petersphotos.com

It's an age-old truism. Men will quickly fall asleep after having sex.
And I know why, too.
It's because they've been up half the night begging for it.

In message , Brian Gaff
wrote
I blame the screwdriver makers myself. I actually never saw a socket head or
posi screw till I was at least 25.. The correct screwdriver for the slot
used to help a lot though.

Slotted screws are not easy to use when 'on site' you are using an
electric screwdriver/drill to insert them.

--
Alan
news2009 {at} admac {dot} myzen {dot} co {dot} uk