less common than Phillips"
Most screws now are Posi. They appear to have taken over the market.
less common than Phillips"
Most screws now are Posi. They appear to have taken over the market.
Probably Merkin since it doesn't mention GKN.
They were a great advance on Phillips since day one.
In message , Doctor Drivel writes
Ceilidh band, actually
There are (or could be!) some very interesting alternatives:
Please eff off as you are a plantpot.
Please eff off as you are a plantpot.
Cor! Maxie, you are a one.
Well of course a screwdriver must have a laser. How else are you going to align the screwdrivers tip with the head of the screw?
A few comments to save splattering replies everywhere.
Phillips screws were invented by the yanks and they are purposely designed to cam out - they were widely used in mass production / industry as a means of torque limiting. What is a purpose designed feature has become in many eyes as a design flaw.
Posidriv was also invented by the yanks - the patent along with that for Phillips screws is online and a simple search will find it, GKN have the rights outside the USA.
Supadriv was a GKN only refinement in the late 70's/early 80's
the cross hole?
Concur - Philips and pozi are completely useless The only screw that is any good is the Winzer Wurth torq head. Goes in any any angle, no jumping off/out by the screw tip. Brilliant.
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