Operation Manual
BX25. RCK54(P)-23BX. RCK60B-23BX. LA240, BT601, WSM
BACKHOE
[3]
AMERICAN STANDARD SCREWS, BOLTS AND NUTS WITH UNC OR
UNF THREADS
Grade
SAE GR.5
G
SAEGR.8
@
~
Nominal
Diameter
N'm
kgf'm
Ibf-ft
N'm
kgf·m
I
bUt
1/4 11.7 to 15.7
1.19to
1.61
8.61
to 11.6 16.3 to 19.7
1.66 to
2.01
12.0 to 14.6
5/16
23.1
to 27.7 2.35 to 2.83 17.0 to 20.5 33 to 39 3.4 to 4.0
24 to 29
3/8
48
to
56
4.9 to 5.8 35.0 to 42.0
61
to 73
6.3 to 7.4 45 to 54
1/2
110
to 130
11
to 13
80 to 96
150 to 178
15.2 to 18.2
110
to 132
9/16
150 to 178 15.2 to 18.2
110
to 132
.
217 to 260
22.2 to 26.5
160 to 192
5/8
I
204 to 244 20.8 to 24.8 150 to 180 299 to 357 30.5 to 36.4 220 to 264
W1022485
[4]
PLUGS
Material
of
opponent
part
Shape Size
Ordinariness
Aluminum
N'm
kgf·m Ibf-ft
N'm
kgf·m
==
IbHt
Tapered
R1/8
13 to
21
1.3 to 2.2 9.4 to
15
13
to
21
1.3 to 2.0 9.4 to 15
screw
R1/4
25 to
44
2.5 to 4.5 18 to 32
25 to
34
2.5 to 3.5
18
to 25
~
R3/8
49 to 88
5.0 to 9.0
37
to 65
49 to
58
5.0 to 6.0 37 to 43
R1/2
58.9 to 107 6.00 to
11.0
43.4 to 79.5 59 to 78 6.0 to 8.0 44 to
57
Straight
G1/4
25 to 34 2.5 to 3.5 18 to 25
-
-
screw
G3/8
62
to
82
6.3 to 8.4 46 to
60
EJ]
- -
G1/2 49 to 88 5.0 to 9.0
37 to 65
0000001666E
9-S8