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Torx head screws

A QUESTION ????

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Alberta Mike

03-02-2001 09:29:22




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I used to have a Chevy van that had Torx head screws holding the headlight trim on so I went out and bought a torx screwdriver. Since then I've had a few Japanese cars and trucks and the torx doesn't show up, at least I haven't found them. I've now got an '87 Dodge car and the headlight went on it and this morning, you guessed it, the chrome moulding was held in place by Torx head screws. Of course, the Torx screwdriver I used to have is nowhere to be found so off to the store to buy one. My neighbour (who is in the aircraft repair industry) tells me that the torx head is used because of it's great grip (as good as a Robertson and much better than a Phillips) and superior strength (stronger than a Phillips and much stronger than a Robertson). OK then, I understand why Torx are used, but can somebody tell me why they have to be used on chrome trim parts? By the way, I'm keeping my new screwdriver in the glovebox inside the car.

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Torqued

03-04-2001 07:59:55




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 Re: Torx head screws - A QUESTION ???? in reply to Alberta Mike, 03-02-2001 09:29:22  
My 88 Chevy pickup has a security torx head for adjusting the headlight aim. A little hole up the shank that fits over the pin on the screw head. Local shop "couldn't" adjust my headlight as none of the mechanics had that particular screw driver and the occurrence of needing one so low that I will have to buy my own. Thank you Generous Motors and engineers. Like my enemies are going to sneak up and realign the headlights with their Swiss army tools!!!

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Ray,IN

03-02-2001 19:43:59




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 Re: Torx head screws - A QUESTION ???? in reply to Alberta Mike, 03-02-2001 09:29:22  
Most of the time torque is not the reason for inventing a fastener drive. The using company wants something reliable that may be used with automatic drivers on assembly lines. I used to work at a plant where they used air or electric drivers to install screws into fiberglass; they didn't need torque, just assembly speed. If they just happen to invent a odball shape, it's a sideline profit.



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MarkB

03-02-2001 14:09:25




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 Re: Torx head screws - A QUESTION ???? in reply to Alberta Mike, 03-02-2001 09:29:22  
Manufacturers go for fasteners that are essentially idiot-proof. That's why you see so many bolts and screws that have a cylindrical tip on the end to help line up the threads.

It's very difficult to strip out the head on a torx. On chrome parts, you don't have to apply that much torque, but a phillips screwdriver can slip out and damage the chrome.



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PLOWBOY

03-04-2001 02:46:55




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 Re: Re: Torx head screws - A QUESTION ???? in reply to MarkB, 03-02-2001 14:09:25  
I use torx head deck screws and cordless drill on all my building projects..... ..better grip,,you'll twist it off before it will strip the head.Cant remeber the last time I've used hammer and nails!!!



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Franz

03-02-2001 10:21:35




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 Re: Torx head screws - A QUESTION ???? in reply to Alberta Mike, 03-02-2001 09:29:22  
Personally, I think SnapOn is in a conspiricy with the car manufacturers. Seems like SnapOn has the tool before anybody else, for the new fastener GM or whoever is about to use 6 months before the car is built. Maybe SnapOn provides free tool bits to the manufacturer.



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Al English

03-02-2001 09:56:15




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 Re: Torx head screws - A QUESTION ???? in reply to Alberta Mike, 03-02-2001 09:29:22  
Hi Mike, Torx head fasteners are easy to manufacture, provide adequate tool engagement(sometimes anyway),and are easy to install in production. There is also usually a little politics and connections associated with why one design prevails over another, but I don't know that story. You may also run across tripple square, double hex, tamper proof Torx, GM Torx, or one of the other specialty Torx type fasterners, each of which requires a unique driver.

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