Inch (SAE) and Metric Fasteners
M1.1
F-code
Section
C-code
Version no
T-code
001
© BT Products
27
Service Manual
1997-09-24
Table 2. Stud and Nut Designations
Types of
Fasteners
Inch Fasteners
Strength Levels: SAE Grades
*
Markings Not Required
Metric Fasteners
Strength Levels: Property Classes
*
Markings Not Required
5*
Studs
5.2*
8*
8.1
Markings Not Required
Markings Not Required
Hex Nuts
Hex Slotted Nuts
Hex Flange Nuts
2
5
8
or
or
5
8
9
10
12
5
8
9
10
12
5
8
9
10
12
5
8
9
10
12
5
8
9
10
12
5
5
8
8
9
9
12
12
10
10
or
4.6*
4.8*
5.8*
8.8
9.8
10.9 12.9
Optional Geometric Symbols for
Size M5 through M11 ONLY.
Markings
for size
M5 and
Larger
4.6
4.8
5.8
8.8
9.8
10.9
12.9
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