Nomenclature Of Screw, Washers And Nut - Pioneer PL-550 Service Manual

5. NOMENCLATURE
OF
SCREW. WASHERS
AND
NUT
The
following symbols stand for
screws, washers and nuts
as
shown in exploded view.
Symbol Description Shape
RT
Brazier
head tapping screw
PT
Pan
head tapping
screw
F
BT Binding
head
tapping
screw
s:
CT
Countersunk
head
tapping
screw
F
TT
Truss head
tapping
screw
@
ocr
Oval
countersunk
head tapping
screw
PM Pan head
machine
screw
CM
Countersunk head machine
screw
F
ocM
Oval
countersunk
head
machine
screw
F
TM
Truss head machine
screw
F
BM
Binding
head machine screw
PSA
Pan head screw
with
spring
lock washer
PSB
Pan head screw
with
spring
lock
washer and
flat
washer
PSF Pan head screw
with
f
lat
washer
Symbol Description
Shape
EW
E type
washer
c
FW
Flat
washer
o
SW
Spring lock
washer @
il
I
N
Nut
@
E
WN
Washer
faced nut @
m
rTw lnternal toothed lock
washer @
OTW Outernal
toothed lock
washer
tgl
SC
Slotted
set
screw
(Cone point)
c E}
SF
Slotted
set
screw
(Flat point)
e
EI
HS
Hexagon socket headless set
screw
@
@
ocw
Oval countersunk
head wood
screw
CW
Countersunk head
wood
screw
RW
Round
head
wood
screw
EXAMPLE
T
L-
tensth in mm (
/
)
I
diameter
in
mm
(d
)
T
L-,6i.1ness
in mm
(
/
)
diameter in mm
(d
)
Symbol
+,
/-r
(Jrj
Symbol
I
E:J