User Guide

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Satellite/Satellite PRO T230 Maintenance Manual 4-8
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 Blue
 Screws of a special length Black
(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 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.)