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Hardware Identification & Torque Specifications; Common Hardware Types; Standard Hardware Sizing; Wrench & Fastener Size Guide - Craftsman ZTS 7500 Operator's Manual

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|US
Common
Hardware
Types
Hex Head Capscrew
Carriage Bolt
Washer
Lockwasher
O
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
Nut, 1/2"
_
inside
Diameter
Screw, 1/2 x 27
.o0../ k//
D"meter/ 711
I
B°dyZ_____I
/
Torque Specification
Chart
FORSTANDARDMACHINEHARDWARE(Tolerance _+ 20%)
Hardware
_
0
Grade
SAEGrade2
SAEGrade 5
Size Of
in/Ibs
in/Ibs
Hardware
fl/Ibs
Nm.
fl/Ibs
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
00
122.4
100
136
166
217.6
186
244.8
146
190.4
155
210.8
226
299.2
246
326.4
30
31
43
49
8
10
17
19
36
35
56
55
75
90
110
126
156
180
260
306
406
440
586
640
NOTES
©
SAEGrade 8
Nm.
_/Ibs
Nm.
3.4
41
4.6
3.5
43
4.9
4.9
60
6.8
5.5
68
7.7
10.9
12
16.3
13.6
14
19.0
23.1
25
34.0
25.8
27
34.0
40.8
45
61.2
47.6
56
68.0
68.0
70
95.2
74.8
86
108.8
102.0
116
149.6
122.4
126
163.2
149.6
156
204.0
163.2
176
231.2
204.0
226
299.2
244.8
240
326.4
353.6
386
525.0
408.0
420
571.2
544.0
600
816.0
598.4
660
897.6
788.8
906
1,244.0
870.4
1,808
1,360.0
1. These torque values are to be used for all hardware
excluding:
Iocknuts, self4apping
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--l/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 - 39

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