2006-09-19 03:00:45 · 8 answers · asked by jahanahmed7 1 in Home & Garden ➔ Do It Yourself (DIY)
Just like everything in life it can be improved. Slot(-) screw heads slip easier than philips(+) they make a square head and a star or torx type that slip less than a phillips(+)
2006-09-19 03:19:34 · answer #1 · answered by wowwhatwasthat 4 · 0⤊ 0⤋
Every country in the world uses the metric system although many products are still manufactured in common sizes for public use. The metric system was devised by French scientists in the late 18th century to replace the confusing collection of units then in use. The goal of Metric's, was to produce a system that did not rely on a collection containing number variety, and to use the "Decimal System rather than Fractions".
2006-09-19 03:12:32 · answer #2 · answered by Excel 5 · 0⤊ 0⤋
I read your question a few times and i think I've got it now, apologies if I haven't. I think you are asking why don't we just have one standard for screw heads,either slotted, cross head ( or pozidrive would be the third )
Well, I for one want to have cross and slotted. Slotted screws are used where the head is visible, much nicer looking that cross head. Cross head are great for power driving and general work.
If you did lots of DIY ( to a reasonable quality ) they you would struglle with just the one type.
2006-09-19 04:45:34 · answer #3 · answered by Michael H 7 · 0⤊ 0⤋
Some on appliances are designed to keep the general public from meddling inside as it can be dangerous
2006-09-19 03:04:20 · answer #4 · answered by philipscottbrooks 5 · 0⤊ 0⤋
no idea!
But what a pain.
learn to tell the difference.
Pozi's have lines between the +
philips don't.
and carry lots more screwdrivers than you need
2006-09-22 11:46:54 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Coz you would have to throw away half your screwdrivers!
2006-09-19 05:12:10 · answer #6 · answered by Jock S 3 · 0⤊ 0⤋
Because people buy more this way
2006-09-19 03:05:18 · answer #7 · answered by eastern_mountain_outdoors 4 · 0⤊ 0⤋
they have actually started making them that way
2006-09-19 03:09:53 · answer #8 · answered by Cra-Z 2 · 0⤊ 0⤋