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Home
About Us
Products
Hex Bolts
Socket Head Cap Screws
Socket Set Screws
Socket Countersunk Screws
Socket Button Head Screws
Hex Key Wrench
Nylock Nuts, Cap / Doom Nuts
Prevailing Torque Nuts
Hex Nuts / Special Nuts
Flange Nuts, Wing Nuts
Square Weld Nuts & Hex Weld Nuts
Cage Nuts, Rivet Nuts
Self Tapping Screws
Spring Washers, Plain Washers
Spring Dowell Pins
Circlips
Blind Rivets
Technical Info
Alliances
Services
Enquiry Now
Contact Us
Button Head Socket (ISO 7380)
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Button Head Socket (ISO 7380)
Button Head
Socket (ISO 7380)
Nominal Screw Diameter and Thread Pitch
A
H
S
J
T
Head Diameter
Head Height
Head Side Height
Hexagon Socket Size
Key Engagement
Min.
Max.
Min.
Max.
Ref.
Nom.
Min.
M3 x 0.5
5.40
5.70
1.43
1.65
0.38
2.0
1.04
M4 x 0.7
7.24
7.60
1.95
2.20
0.38
2.5
1.30
M5 x 0.8
9.14
9.50
2.50
2.75
0.50
3.0
1.56
M6 x 1
10.07
10.50
3.00
3.30
0.80
4.0
2.08
M8 x 1.25
13.57
14.00
4.05
4.40
0.80
5.0
2.60
M10 x 1.5
17.07
17.50
5.20
5.50
0.80
6.0
3.12
M12 x 1.75
20.48
21.00
6.24
660
0.80
8.0
4.16
M16 x 2
27.48
28.00
8.44
8.80
1.5
10.0
5.20
Nominal Screw Diameter and Thread Pitch
G
B
E
F
L
Wall Thickness
Under Head Fillet
Maximum Standard Length
Transition Diameter
Transition Length
Juncture Radius
Min.
Min.
Max.
Max.
Min.
Nom
M3 x 0.5
0.20
3.2
3.6
0.51
0.10
12
M4 x 0.7
0.30
4.4
4.7
0.60
0.20
20
M5 x 0.8
0.38
5.4
5.7
0.60
0.20
30
M6 x 1
0.74
6.5
6.8
0.68
0.25
30
M8 x 1.25
1.05
8.8
9.2
1.02
0.40
40
M10 x 1.5
1.45
10.8
11.2
1.02
0.40
40
M12 x 1.75
1.63
13.2
14.2
1.87
0.60
60
M16 x 2
2.25
17.2
18.2
1.87
0.60
60
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