The 80 series technical board has a great thread on interesting facts and related trivia about 80 series called 'Did You Know'. This gave me an idea to start one on the CC site covering the popular series we drive: - the 40, 60, 70, 80 and 100 series (and others).
So to start the game --- posts related to 40 series would be titled 'Did You Know 40 Series' or 'DYK-40' or 'Did You Know 60 Series' or 'DYK-60' and so on. For posts that cover all series or tool related covering, just DYK for short. To make this fun and interesting and keep the interest up keep it related to Landcruisers and related topics and no off topic digressions or hi-jacks please.
Lets play....
The Phillips® versus JIS (Japanese Industrial Standard) Phenomenon
One of the most recognized types of screwdrivers in the US is the traditional Phillips® screwdriver. It’s probably the most commonly used driver in your toolbox for fastening cross-point screws. Do you experience “cam-outs” and damage screws when using a Phillips® screwdriver on Japanese brand products (Landcruisers)? If so, then it may be a “JIS” (Japanese Industrial Standard) screw. A JIS and a Phillips® screw may look the same to the human eye, but they have completely different profiles and it's important to know the difference.
Henry Phillips invented and patented the Phillips® design in 1936. The Phillips® design was a great solution for the automobile production lines since it was designed to “cam-out” after a certain torque was reached to prevent over-tightening of the screw. Another advantage over the use of flat head screws was that the Phillips® self-centering design allowed operators to engage the tip of the driver into the screw head very quickly and easily.
Japanese engineers developed their own cross-point design similar to that of the Phillips®. The Japanese cross-point drivers also have the self-centering and quick tool and screw engagement, however the “JIS” (Japanese Industrial Standard) design allowed torque and over-tightening to be controlled by the operator and not at the head of the screw. This key difference is why Phillips screwdrivers cannot properly engage "JIS” (Japanese Industrial Standard) screws.
It’s very hard to distinguish the difference between a Phillips® versus a JIS screw without magnification. Some JIS screws can be easily identified by a single dot or dimple on the head of the screw. However, it could be difficult to identify one from the other if the screw doesn’t have a marking.
So to start the game --- posts related to 40 series would be titled 'Did You Know 40 Series' or 'DYK-40' or 'Did You Know 60 Series' or 'DYK-60' and so on. For posts that cover all series or tool related covering, just DYK for short. To make this fun and interesting and keep the interest up keep it related to Landcruisers and related topics and no off topic digressions or hi-jacks please.
Lets play....
The Phillips® versus JIS (Japanese Industrial Standard) Phenomenon
One of the most recognized types of screwdrivers in the US is the traditional Phillips® screwdriver. It’s probably the most commonly used driver in your toolbox for fastening cross-point screws. Do you experience “cam-outs” and damage screws when using a Phillips® screwdriver on Japanese brand products (Landcruisers)? If so, then it may be a “JIS” (Japanese Industrial Standard) screw. A JIS and a Phillips® screw may look the same to the human eye, but they have completely different profiles and it's important to know the difference.
Henry Phillips invented and patented the Phillips® design in 1936. The Phillips® design was a great solution for the automobile production lines since it was designed to “cam-out” after a certain torque was reached to prevent over-tightening of the screw. Another advantage over the use of flat head screws was that the Phillips® self-centering design allowed operators to engage the tip of the driver into the screw head very quickly and easily.
Japanese engineers developed their own cross-point design similar to that of the Phillips®. The Japanese cross-point drivers also have the self-centering and quick tool and screw engagement, however the “JIS” (Japanese Industrial Standard) design allowed torque and over-tightening to be controlled by the operator and not at the head of the screw. This key difference is why Phillips screwdrivers cannot properly engage "JIS” (Japanese Industrial Standard) screws.
It’s very hard to distinguish the difference between a Phillips® versus a JIS screw without magnification. Some JIS screws can be easily identified by a single dot or dimple on the head of the screw. However, it could be difficult to identify one from the other if the screw doesn’t have a marking.
