Craftsman 28992 Operation Manual - Page 118

Hardwareidentification& TorqueSpecifications - tools

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Hardware identification& TorqueSpecifications Common Hardware Types Hex Head Capscrew Washer Torque Specification Chart FOR STANDARD MACHINE HARDWARE (Tolerance _+20%) Carriage Belt 0(((( Leckwasher _Hex Nut Standard Hardware Sizing When a washer or nut is identified as 1/2", this is the Nominal size, meaning the inside diameter is 1/2 inch; if a second number is present it represent the threads per inch When bolt or capscrew is identified as 1/2 - 16 x 2", this means the Nominal size, or body diameter is 1/2 inch; the second number represents the threads per inch (16 in this example, and the final number is the body length of the bolt or screw (in this example 2 inches long). The guides and ruler furnished below are designed to help you select the appropriate hardware and tools. m_ Nut, 1/2" - (,3 Inside Diameter m_ Screw, 1/2 x 2 _- I m_ oJd, I m_ Diameter ( B°dy ____. | / mC._ m_ _ength _ _ raaerdwdare G SAE Grade2 0 SAEGrade 5 Q SAEGrade8 Size Of in/Ibs in/Ibs in/Ibs Hardware ft/I bs Nm. ft/Ibs Nm. ft/I bs Nm. 8-32 8-36 10-24 10-32 1/4-20 1/4-28 5/16-18 5/16-24 3/8-16 3/8-24 7/16-14 7/16-20 1/2-13 1/2-20 9/16-12 9/16-18 5/8-11 5/8-18 3/4-10 3/4-16 7/8-9 7/8-14 1-8 1-12 19 2.1 20 2.3 27 3.1 31 3.5 66 7.6 76 8.6 11 15.0 12 16.3 20 27.2 23 31.3 30 40.8 35 47.6 50 68.0 55 74.8 65 88.4 75 102.0 90 122.4 100 136 160 217.6 180 244.8 140 190.4 155 210.8 220 299.2 240 326.4 30 3.4 41 4.6 31 3.5 43 4.9 43 4.9 60 6.8 49 5.5 68 7.7 8 10.9 12 16.3 10 13.6 14 19.0 17 23.1 25 34.0 19 25.8 27 34.0 30 40.8 45 61.2 35 47.6 50 68.0 50 68.0 70 95.2 55 74.8 80 108.8 75 102.0 110 149.6 90 122.4 120 163.2 110 149.6 150 204.0 120 163.2 170 231.2 150 204.0 220 299.2 180 244.8 240 326.4 260 353.6 386 525.0 300 408.0 420 571.2 400 544.0 600 816.0 440 598.4 660 897.6 580 788.8 900 1,244.0 640 870.4 1,000 1,360.0 NOTES 1. These torque values are to be used for all hardware excluding: Iocknuts, self-tapping screws, thread forming screws, sheet metal screws and socket head setscrews. 2. Recommended seating torque values for Iocknuts: a. for prevailing torque Iocknuts - use 65% of grade 5 torques. b. for flange whizlock nuts and screws - use 135% of grade 5 torques. 3. Unless otherwise noted on assembly drawings, all torque values must meet this specification. Wrench & Fastener Size Guide 1/4" Bolt or Nut Wrench--7/16" 5/16" Bolt or Nut Wrench--I/2" 3/8" Bolt or Nut Wrench--9/16" 7/16" Bolt or Nut Wrench (Bolt)--5/8" Wrench (Nut)--11/16" 1/2" Bolt or Nut Wrench--3/4" PTS - 42

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Hardwareidentification& TorqueSpecifications
Common
Hardware
Types
Hex Head Capscrew
Carriage
Belt
€(((((((((((((((((((
0
Washer
Leckwasher
_Hex
Nut
Standard
Hardware
Sizing
When
a washer
or
nut
is
identified
as
1/2",
this
is the
Nominal
size,
meaning
the
inside
diameter
is 1/2
inch;
if a
second
number
is present
it represent
the
threads
per
inch
When
bolt
or capscrew
is identified
as 1/2
- 16 x 2",
this
means
the
Nominal
size,
or
body
diameter
is 1/2
inch;
the
second
number
represents
the
threads
per
inch
(16 in this
example,
and
the
final
number
is the
body
length
of the
bolt or screw
(in this
example
2 inches
long).
The
guides
and
ruler
furnished
below
are
designed
to
help
you
select
the appropriate
hardware
and
tools.
m_
-
(,3
m_
m_
m_
mC._
m_
Nut, 1/2"
Inside
Diameter
Screw,
1/2 x 2
_-
I
od,
J
I
Diameter
(
B°dy
____.
|
/
_ength
_
Torque
Specification
Chart
FORSTANDARD MACHINE HARDWARE (Tolerance _+20%)
_
raardd
eware
G
0
Q
SAE
Grade2
SAE
Grade5
SAE
Grade8
Size Of
in/Ibs
in/Ibs
Hardware
ft/I bs
ft/I bs
Nm.
8-32
8-36
10-24
10-32
1/4-20
1/4-28
5/16-18
5/16-24
3/8-16
3/8-24
7/16-14
7/16-20
1/2-13
1/2-20
9/16-12
9/16-18
5/8-11
5/8-18
3/4-10
3/4-16
7/8-9
7/8-14
1-8
1-12
19
20
27
31
66
76
11
12
20
23
30
35
50
55
65
75
90
100
160
180
140
155
220
240
in/Ibs
Nm.
ft/Ibs
Nm.
2.1
30
3.4
2.3
31
3.5
3.1
43
4.9
3.5
49
5.5
7.6
8
10.9
8.6
10
13.6
15.0
17
23.1
16.3
19
25.8
27.2
30
40.8
31.3
35
47.6
40.8
50
68.0
47.6
55
74.8
68.0
75
102.0
74.8
90
122.4
88.4
110
149.6
102.0
120
163.2
122.4
150
204.0
136
180
244.8
217.6
260
353.6
244.8
300
408.0
190.4
400
544.0
210.8
440
598.4
299.2
580
788.8
326.4
640
870.4
41
4.6
43
4.9
60
6.8
68
7.7
12
16.3
14
19.0
25
34.0
27
34.0
45
61.2
50
68.0
70
95.2
80
108.8
110
149.6
120
163.2
150
204.0
170
231.2
220
299.2
240
326.4
386
525.0
420
571.2
600
816.0
660
897.6
900
1,244.0
1,000
1,360.0
NOTES
1.
These
torque values
are to be used for all hardware
excluding:
Iocknuts,
self-tapping
screws,
thread
forming
screws,
sheet metal screws
and socket head setscrews.
2.
Recommended
seating
torque values
for Iocknuts:
a.
for prevailing torque
Iocknuts - use 65% of grade
5
torques.
b.
for flange whizlock
nuts and screws
- use 135%
of
grade
5 torques.
3.
Unless
otherwise
noted
on assembly
drawings,
all torque
values
must meet this specification.
Wrench
& Fastener
Size
Guide
1/4" Bolt
or Nut
Wrench--7/16"
5/16"
Bolt
or Nut
Wrench--I/2"
3/8" Bolt
or Nut
Wrench--9/16"
7/16"
Bolt
or Nut
Wrench
(Bolt)--5/8"
Wrench
(Nut)--11/16"
1/2" Bolt or Nut
Wrench--3/4"
PTS
- 42