Color of Screw Shaft | Toshiba A40 instruction

4.1 General

4 Replacement Procedures

Color of Screw Shaft

To avoid mistakes on the screw length, screw shafts are colored as follows:

Even number length screw:	brown
Odd number length screw:	white
Special length screw:	blue

Screws whose lengths are indicated to one or more decimal places such as 2.5 mm or 2.8 mm.

Marking of Screws on the Computer Body

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.

Kind of screws	Symbol
BIND screw	B
FLAT HEAD screw	F
SUPER FLAT HEAD screw	S
TAPPING screw	T
Other screws	U
(Unique screws, STUD, etc.)
Examples:
6 mm BIND screw	B6
12 mm BIND screw	B12
5 mm FLAT HEAD screw	F5

(Indicates the screwed length in round number regardless the length of the stud.)

Satellite A40 Maintenance Manual (960-458)

4-7

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Toshiba A40 manual Color of Screw Shaft, Marking of Screws on the Computer Body