The message to which you are about to reply is shown first. GO TO REPLY FORM



 VIEW    REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

Re: Why the Torx? 700 1985

posted by  someone claiming to be Evan R on  Wed Nov 29 16:51 CST 2000 [RELATED]

Unfortunately,

> Phillips heads, apparently to get around patent issues, come in all

> sorts of sizes, tapers and nose depths.

Ummm, no they don't. The term "Phillips" only refers to ONE type of crosspoint screw/driver. There are only a few more sizes than Robertson:

#00, #0, #1, #2, #3, and #4

Now, there ARE other types of cross-point fastener head. And this is where you get into different tapers and nose depths.

In the early 50's, the Posidriv screw head was manufactured by the Phillips Screw company. Here is an article about Posidriv screws. They allow for more torque to be used before the tool slips out of the fastener.

Yet *another* cross-point screwdriver is the Reed & Prince. Why? dunno.

Here is more info:

===

There are 3 different screws and screw drivers that all look somewhat the same but are not interchangeable.

1. Phillips (most common of cross point style screws)

A. Straight side ramps, rounded nose.

2. Reed & Prince (used mainly in aircraft and marine apps.)

A. Straight side ramps with sharp pointed nose, steep ramp angle.

3. Posi-Driv (used in GM vehicles since early 80s)

A. Curved side ramps, extra flute between ramps and curved nose.

===

So THERE! There is only ONE Phillips screw!





USERNAME
Use "claim to be" below if you don't want to log in.
PASSWORD
I don't have an account. Sign me up.
CLAIM TO BE
Use only if you don't want to login (post anonymously).
ENTER CAPTCHA CODE
This is required for posting anonymously.
OPTIONS notify by email
Available only to user accounts.
SUBJECT
MODEL/YEAR
MESSAGE

DICTIONARY
LABEL(S) +
IMAGE URL *
[IMAGE LIBRARY (UPLOAD/SELECT)]

* = Field is optional.

+ = Enter space delimited labels for this post. An example entry: 240 muffler


©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.