Phillips or Pozi

[DPG]

And if that wasn't enough don't forget the Japanese JIS cross head.

 

[nicebutdim]

And if that wasn't enough don't forget the Japanese JIS cross head.

Turn up on electronic devices and really don't like PH or PZ drivers.

 

[DPG]

Identified by a small dot on the head I believe.

 

[nicebutdim]

Identified by a small dot on the head I believe.

That's supposed to be the case, but those that I've found have been tiny and unmarked.

 

[MJPD29]

List of screw drives - Wikipedia

en.wikipedia.org

Apparently it allows greater force to be applied. I don't know why either continues to be so widely used, considering the more reliable alternatives.

I can only imagine its because the mass of screws produced means they wre chepa to buy. I don't know any electrician here that uses them much, mainly square head used here.

 

[James]

I can only imagine its because the mass of screws produced means they wre chepa to buy. I don't know any electrician here that uses them much, mainly square head used here.

I use loads of screws.
Cable cleats, distribution boards, back boxes, trunking, lights.
They all need attaching to something

Blue tack is great for posters in the kids rooms but I don’t think I would hang a light fitting with it.

 

[MJPD29]

I use loads of screws.
Cable cleats, distribution boards, back boxes, trunking, lights.
They all need attaching to something

Blue tack is great for posters in the kids rooms but I don’t think I would hang a light fitting with it.

I presumed he meant he doesn't know why they still produce that type of screw, not why they still produce screws all together. I also use screws, some would say I am a fan of the marvellous piece of material that they are.

 

[nicebutdim]

I presumed he meant he doesn't know why they still produce that type of screw, not why they still produce screws all together. I also use screws, some would say I am a fan of the marvellous piece of material that they are.

Not so much that I didn't know why they're still produced, but why they remain so popular. I use square heads for almost everything and could count on one hand the number of times I've damaged one - those few occasions were driving at a severe angle with an impact driver. Compare that to the number of times anyone who owns a screwdriver will have encountered a damaged Phillips or Pozi head...

Phillips and Pozi serve a purpose, but have significant limitations and more reliable alternatives have existed for as long as those two screw forms have been around. PH & PZ are a better option than slotted drive, but not significantly so.

 

[pirate]

I think pozi are better than slotted by miles, especially if using a Yankee driver!
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Also, if you use proper pozis, like turbo ultra, they self-drill and drive very quickly...but those chinese ones made of case-hardened cheese are a disaster...pit an impact driver near them and they melt

 

[MJPD29]

Not so much that I didn't know why they're still produced, but why they remain so popular. I use square heads for almost everything and could count on one hand the number of times I've damaged one - those few occasions were driving at a severe angle with an impact driver. Compare that to the number of times anyone who owns a screwdriver will have encountered a damaged Phillips or Pozi head...

Phillips and Pozi serve a purpose, but have significant limitations and more reliable alternatives have existed for as long as those two screw forms have been around. PH & PZ are a better option than slotted drive, but not significantly so.

I agree. I keep a small selection of pozidrives in large or random sizes that square heads aren't available in. Slotted drive i never use. Only slotted screws i use are for screwing up faceplates.

 

[nicebutdim]

I agree. I keep a small selection of pozidrives in large or random sizes that square heads aren't available in. Slotted drive i never use. Only slotted screws i use are for screwing up faceplates.

My father seems to have a never ending supply of slotted screws in every imaginable size, although he invariably uses an unsuitable size for every job (most likely whatever was in his pocket at the time). I hate the things with a passion and my heart sinks every time I see a slotted screw with its slot partially sheared.

 

[pirate]

I have some slotted screws in big sizes, left over from my boatbuilding days. They are silicon-bronze and pretty massive. used to drive them in with a brace and bit...museum pieces now, I guess. i do remember they were incredibly expensive, but were preferred to stainless steel, particularly underwater, for their corrosion resistance. As mentioned earlier on another thread, one of my boats had a lot of Robertson screws...nice finish, but you need the right driver...
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Is it just me, or do you all like fastenings? I marvel at the huge rust-proof coachscrews i used for decking jobs...bung a socket on your SDS and just drive them home...and those Multi-Montis and suchlike for concrete etc...pilot hole, drive them in, use a socket or whatever...solid! And today's wood screws, of reputable makes, they just do the job for you...no pilot, just drive...how did we ever manage without them? Well, we did, but it's just so much easier now. Only downside i see is the finer shafts, but actually haven't found many problems with strength.

 

[Taylortwocities]

My heart used to sink on site, when Mr Plumber came along to borrow a "cross head" screwdriver. The question as to if he needed a Pozi or Philips always seemed a difficult one.

 

[davesparks]

Slotted screws still have their place, I keep a few sizes of dome headed brass slotted screws for MICC work. Nothing else would look right in bare copper P clips in my opinion.

 

[nicebutdim]

Also fine in faceplates and many other applications, but don't belong in places where significant torque would be required to tighten them. Aesthetics is one all well and good, but not to the detriment of practicality.