Toshiba Satellite A350D manual Colors of Screw Shanks, Symbols of Screws on the Laptop Body

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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	White
‰	Screws of a special length	Black

Screws of a special length are those of a length having decimal places (i.e. 16mm).

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.)

Satellite A350D Maintenance Manual 4-7