Editing 1474: Screws

{{incomplete|May still needs expansion, possibly with origins of the various real screws?}}

The comic features various real or imagined types of screws, listed below.

| {{w|List of screw drives#Phillips|Phillips screw drive}} and its corresponding screw head is one of the most recognizable types of screw heads that is commonly used in construction. This type of screw head was named after its inventor, a US businessman {{w|Henry F. Phillips}}. Neither the inventor nor his invention have any relationship to the Dutch electronics manufacturing company with similar, but not exactly the same name {{w|Philips}}.

|  {{w|List_of_screw_drives#Slot|Slot head screws}} are frequently erroneously referred to as flat heads (a flat head screw refers, in fact, to the shape of the screw head, regardless of the shape of the drive socket). The slot head is also commonly used in construction. The diagram shows the slot truncated, where in reality the slot almost always runs across the entire head of the screw (as in fictional case of the "uranium screw" below).

| Uh oh. Maybe it's on Amazon? (star-shaped screw)

| Manufacturers sometimes used screws that require special heads in order to remove them, in order to prevent the customer tampering with the product. The reference to Amazon is the speaker's suggestion to look on Amazon.com for the appropriate screwdriver. A number of star-shaped screw heads exist, notably the six-pointed {{w|Torx}}, and Apple's rounded {{w|Pentalobe screw|pentalobe screw}}. Torx screws are common in automotive applications —they are easier to screw in via electric screwdrivers— and on bicycles where a higher tightening torque is needed than hex screws can support. Disk brakes mounts are where they are now common.

| Cursed -1 Phillips head

| The head of a screw can be stripped by overuse, tightening the screw too much, or other misuse. As the driving surfaces wear away, removing the screw becomes more and more difficult, usually damaging the screw more in the process.  

The addition of "cursed" and "-1" in the titles is a reference to various fantasy games (E.g. Dungeons and Dragons), where magical items which have been damaged or are denoted as cursed or have a rating of a negative integer.  

Additionally, Phillips bit sizes are numbered, with larger numbers denoting smaller bits. The most common sizes are #2, #1, and #0. There are no negative sizes; smaller bits than #0 are indicated by repeating zeroes, for example #00. The "-1" could refer to an imaginary size smaller than any real Phillips bit that would now fit in the stripped out head.

| Rivet

| A {{w|rivet}} is not a screw - it is a permanent fastener which is secured by deforming the body of the fastener. Rivets cannot be removed with a screwdriver, they must be "drilled out". Some bolts also have rounded rivet-style heads, though, with no means of gripping them.

| Phillips head ruiner (hex screw)

| A reference to the fact that {{w|List_of_screw_drives#Hex_socket|hex socket}} screws can, in a pinch, be removed with a Phillips screwdriver, but will likely damage the driver in the process. Hex screws are common on bicycles, where they always come in the metric varieties. The same holds for hex screws which ship with Ikea furniture —who bundle a low-quality hex driver for those people who lack them. Imperial-sized hex screws do sometimes surface, to the dissatisfaction of anyone who owns a hex driver set. The smaller hex screws can enter the "-1" state when attempting to unscrew one that has been overtightened —hence the adoption of Torx screws in high-torque applications.

 

| This is (probably) a representation of a {{w|File:Fission bomb assembly methods.svg|gun-type fission weapon}}, two hemispheres made of uranium that achieve a {{w|Critical mass|critical mass}} when pushed into each other during initial stage of detonation. A real thing, when seen from aside, indeed vaguely resembles the appearance of a slot screw head (the latter as seen from the top). Multiple radially extending short wave-like lines around the "screw" symbolize radiant energy output - either a natural radioactivity of the uranium or an explosive outburst during detonation. The former option is likely to be more logical, as the presence of a gap (graphically corresponding to a slot in the slot screw head) indicates that the weapon assembly has not been detonated yet, as the detonation requires extremely tight contact between flat portions of the surfaces of the hemispheres. The "uranium head" could also be a reference to {{w|Demon core#Second incident| an incident involving a screw driver and a fission experiment called 'demon core'}}, although the core in that experiment was made of plutonium, not uranium.

| This is a literal (and rather morbid) interpretation of the misspelling "Phillip's head" when "Phillips head" is meant. Rather than refer to the screw type, this "screw" is actually a bloody bag containing the severed head of someone named Phillip. It could possibly be an allusion to one of the {{w|Decapitation|decapitations}} of the royal persons that took place several times in the human history, perhaps even more specifically to {{w|French Revolution|revolutionary France}} where {{w|Capital punishment|capital punishment}} by decapitation was made well-known due to introduction of {{w|Guillotine|guillotine}} and its active use against the former royalty. However, despite the {{w|Philip|name Phillip being used by several members of the upper echelon of French royalty}}, none of the {{w|List of people who were beheaded|famous people ever executed this way in France or anywhere else}} were called Phillip. Intentionally or otherwise, this last punchline could be described as a "mind screw".

|A {{w|List_of_screw_drives#Hex|hex bolt}} has six external sides, so it could in theory be held by squeezing two screwdriver shafts together with the bolt in between. The amount of force on the two screwdriver shafts needed to turn the hex bolt will probably exceed the strength of human hands and would most likely result in hurting your hands and not in turning the bolt.

:Cursed –1 Phillips head