N O M E N C L A T U R E O F S C R E W S , W A S H E R S A N D N U T - Pioneer PL-518 Service Manual

6 . N O M E N C L A T U R E O F S C R E W S . W A S H E R S A N D N U T S
The following symbols stand for screws, washers and nuts as shown
Svmbol
i
-l
R T I
1
BT
PT
P a n h e a d t a p p i n g s c r e w
B r a z i e r h e a d t a p p i n g s c r e w
B i n d i n g h e a d t a p p i n g s c r e w
D e l t a t i g h t
p a n h e a d t a p p i n g s c r e w
D P T
APT
A l u m i n u m
p a n h e a d t a p p i n g s c r e w
;; ";;";;u *"*oo,"n
O C T
P M
C M
O C M
s c r e w
P a n h e a d m a c h i n e s c r e w
C o u n t e r s u n k h e a d m a c h i n e
s c r e w
O v a l c o u n t e r s u n k h e a d
m a c h i n e s c r e w
T r u s s h e a d m a c h i n e s c r e w
B i n d i n g h e a d m a c h i n e s c r e w
P a n h e a d s c r e w w i t h s p r i n g
l o c k w a s h e r
/t\':-
|l/L-|,
ft--
\ l :
T M
B M
P S A
P S B
P a n h e a d s c r e w w i t h s p r i n g
l o c k w a s h e r a n d f l a t w a s h e r
P S F
P a n h e a d s c r e w w i t h f l a t w a s h e r
E X A M P L E
P L - s 1 A
Svmbol
I
. * f
D e s c r i p t i o n
E t y p e w a s h e r
F l a t w a s h e r
S p r i n g l o c k w a s h e r
W a s h e r f a c e d n u l
H e x a g o n s o c k e t h e a d l e s s s e t
screw
O v a l c o u n t e r s u n k
h e a d w o o d
screw
l o m
r
I a ) \
@
5 L
l
S F
OTW
H S
ocw
I T W
I n t e r n a l t o o t h e d l o c k w a s h e r
O u t e r n a l t o o t h e d l o c k w a s h e r
r
S l o t l e d s e t s c r e w ( C o n e p o i n t )
C
1
S l o t t e d s e t s c r e w ( F l a t p o i n t )
e f l
CW
R W
R o u n d h e a d w o o d s c r e w
C S ' T W
l e n g t h i n m m ( 1 )
d i a m e t e r i n m m ( d )
Nr =-
t,
l,
i._ r --l
fh-
--r-a
l * ,
- l
I
r - J
Y / r
F W . 9 d x 1 t
I
I-
thickness in mm ( r )
| - d i a m e t e r i n m m ( r , 1 )
'
S y m b o l
1 3