TM 10-4930-351-14
0104 00
HEX NUT STRENGTH IDENTIFICATION
English System
Metric System
Grade
Identification
Grade
Identification
Hex Nut
Hex Nut
Property
Grade 5
Class 9
9
3 Dots
Arabic 9
Hex Nut
Hex Nut
Property
Grade 8
Class 10
10
6 Dots
Arabic 10
Increasing dots represent increasing strength
Increasing numbers represent increasing strength
BOLT NOMENCLATURE
ENGLISH SYSTEM
METRIC SYSTEM
Example: 1/4 - 28 x 1.25
Example: M8 - 1.0 x 25
D T
L
D T
L
G
P
T
T
D
D
L
L
D = Diameter (inches)
L = Length (inches)
D = Diameter (millimeters)
L = Length (millimeters)
G = Grade (bolt strength)
T = Threads/inch
P = Property (bolt strength)
T = Thread width
(millimeters)
0104 00-2
