Toshiba PROA500 Manual Do Utilizador

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).  

 

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.) 

 

  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.)