3.1.4 Screw Specifications
This chapter uses abbreviations
abbreviations.
FHI.-A
for small parts, such as screws and washers. Tables 3-4 and 3-5 list these
Table 3-4. Abbreviations Used for Screws
Abbreviation
Part Name
CBB
Cross-recessed Bind head B tight screw
CBC
Cross-recessed Bind head C tight screw
CBN
Cross-recessed Bind head N tight screw
CBS
Cross-recessed Bind head S
tiaht
screw
Table 3-5. Screw Types and Abbreviations
Head
Body
Washer
(assembled)
Top
Side
1.~ross–recessed
head 1.~ind
1
.~ormal
1.~lain
washer
@
b
——
(Q@
0=
2,
~-tight
2.~lotted
head
(with
IJotch)
ma
2.@tside toothed
\
!
I
!’1;.1
,!~
: ,
\
lock washer
e
2,~an
0=
.—
‘=;
Q@
3.Qlp
b
4.~apping
3.~pring washer
——
I
~~~~~
mo
(Q)@
4.
~russ
b
—.
-9
\
3-3
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