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4.1 General 4 Replacement Procedures
Satellite/Satellite Pro/C650/C655 Maintenance Manual 4-7
Colors of Screw Shanks
For easy identification of the correct screws, the screw shanks are colored according to their
lengths, as follows:
Screws of an even-numbered length Brown
Screws of an odd-numbered length White
Screws of a special length Black
Screws of a special length are those of a length having decimal places, such as 2.5
mm and 2.6 mm.
Symbols of Screws on the Computer Body
For easy maintenance, the screw types are shown on the computer body as symbols. A
symbol consists of a letter representing the screw type and a numeral representing the screw
length.
Screw type Letter
Bind screw B (stands for bind)
Flat-head screw F (stands for flat-head)
Super flat-head screw S (stands for super flat-head)
Tapping screw T (stands for tapping)
Other screws U (stands for unique-pan head screws, studs, etc.)
Symbol examples
6 mm bind screw B6
12 mm bind screw B12
5 mm stud U5
(The numeral represents the rounded length of the threaded portion regardless of the
entire stud length.)