Toshiba PORTÉGÉ A600 Maintenance Manual page 237

4.1 Overview
Grip Color
Some screws have a colored grip area to help you determine the length of the screw.
[Normal grip]
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•
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[Special grip]
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"Special length screw" means screws whose length is indicated in an integral number to the
first decimal places such as 2.5 mm, 2.6 mm and so on.
Screw Notation
To make maintenance of the computer easier, markings of the kinds of the screws including
the types and lengths of the screws are indicated on the computer body.
Format:
PORTÉGÉ A600 Maintenance Manual (960-710)
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Even numbered length screws: Brown
Odd numbered length screws: White
Special length screw: Blue
Even numbered length screws: Yellow
Odd numbered length screws: Pink
Special length screw: Green
Screw type + Screw length (mm)
Screw shape
B: Bind screw
F: Flat head screw
S: Super thin head screw
T: Tapping screw
U: Other screws (Unique screws: pan head, stud, etc.)
Example: B6 ... 6mm BIND screw
Screw color/material
B: Black/Nickel
C: Silver/Non-Hexavalent Chromate
U: Other screws (Unique screws: such as stud, etc.)
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4 Replacement Procedures
Grip area
[CONFIDENTIAL] 4-9