4 Replacement Procedures Error! Use the Home tab to apply
appear here. Error! Use the Home tab to apply
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 odd-numbered length
Screws of a special length
(Screws of a special length are those of a length having decimal places, eg - 2.5 mm).
Symbols of Screws on the Laptop Body
For easy maintenance, the screw types are shown on the laptop body as symbols. A symbol
consists of a letter representing the screw type and a numeral representing the screw length.
Screw type
Bind screw
Flat-head screw
Super flat-head screw
Tapping screw
Other screws
Symbol examples
6 mm bind screw
12 mm bind screw
5 mm stud
(The numeral represents the rounded length of the threaded portion regardless of the
entire stud length.)
Satellite L550 Maintenance Manual
2 to the text that you want to appear here.
Blue
Black
Letter
B (stands for bind)
F (stands for flat-head)
S (stands for super flat-head)
T (stands for tapping)
U (stands for unique-pan head screws, studs, etc.)
B6
B12
U5
2 to the text that you want to
4-8