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2. List of screw drives - Wikipedia

   en.wikipedia.org/wiki/List_of_screw_drives

   The Phillips/square screw drive, also known as the Quadrex, Pozisquare screw drive, is a combination of the Phillips and Robertson screw drives. While a standard Phillips or Robertson tool can be used, there is also a dedicated tool for it that increases the surface area between the tool and the fastener so it can handle more torque. [64]

3. Henry F. Phillips - Wikipedia

   en.wikipedia.org/wiki/Henry_F._Phillips

   Phillips screw head. Henry Frank Phillips (June 4, 1889 – April 13, 1958) was an American businessman from Portland, Oregon. The Phillips-head ("crosshead") screw and screwdriver are named after him. [1] The importance of the crosshead screw design lies in its self-centering property, useful on automated production lines that use powered ...

4. Screwdriver - Wikipedia

   en.wikipedia.org/wiki/Screwdriver

   Also Known as a "Phillips Head screwdriver, This is a typical simple screwdriver has a handle and a shaft, ending in a tip the user puts into the screw head before turning the handle. This form of the screwdriver has been replaced in many workplaces and homes with a more modern and versatile tool, a power drill , as they are quicker, easier ...

5. Cam out - Wikipedia

   en.wikipedia.org/wiki/Cam_out

   The Phillips screwdriver design has a tendency to cam out during operation due to angled contact surfaces, which create an axial force pushing the driver out of the recess as torque is applied. Despite popular belief, [ 2 ] there is no clear evidence that this was a deliberate design feature.

6. Robertson screw - Wikipedia

   en.wikipedia.org/wiki/Robertson_screw

   Combination Robertson/Phillips/slotted fasteners are often used in the electrical trade, particularly for device and circuit breaker terminals, as well as clamp connectors. Robertson screwdrivers are easy to use one-handed, because the tapered socket tends to retain the screw, even if it is shaken.

7. Talk:List of screw drives - Wikipedia

   en.wikipedia.org/wiki/Talk:List_of_screw_drives

   A marketing video demonstrates a screw that does not work well with either a Philips or flat blade screwdriver. The video claims the 7314 is designed to fit the "combination screws commonly found on electrical devices and conduit fittings." My "original research" indicates that this tool does not quite fit the screws on Leviton CBR15-W receptacles.