Inch and Metric Size, Steel
Socket Head Cap Screws
With Full, Flat or Serrated Ball Point Ends
GN 606
GN 606

RoHS Compliant

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GN 606
Specification
Information

Body: Alloy steel, black oxide finish
European standard 10.9 grade
(American standard A490)
Ball: Steel, hardened

Type A - Full ball
Type B - Flat ball
Type V - Flat ball, with swivel limiting stop
Type VR - Flat ball, with swivel limiting stop, serrated

GN 606 socket head cap screws with ball point are used in applications where a ball point contact is required.
The flat faced moveable ball allows the clamping or supporting of non-parallel surfaces. Indentation on the workpiece is eliminated and the workpiece does not alter its position during clamping.
Socket head cap screws with safety twist ball is designed so the flat faced ball cannot twist more than a maximum of 9 degrees. This allows full clamping of the flat faced ball at all times. 
Socket set screws with ball point, see GN 605.
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Inch Table - Full and Flat Balls without Safety Feature

Dimensions in:

inches
(millimeters)

Part Number
d1
Thread
l1 
Thread Length
d2
d3
d4
l2
l6
A/F
Full Ball
Flat Ball
8-32
.500
.078
(1.98)
.061
(1.56)
.270
(6.86)
.030
(.76)
.164
(4.17)
.141
(3.57)
10-24
.500
.094
(2.38)
.075
(1.91)
.312
(7.92)
.039
(.99)
.190
(4.83)
.156
(3.97)
.625
10-32
.500
.125
(3.18)
.103
(2.61)
.312
(7.92)
.039
(.99)
.190
(4.83)
.156
(3.97)
.625
1/4-20
.625
.156
(3.97)
.124
(3.14)
.375
(9.53)
.049
(1.24)
.250
(6.35)
.188
(4.76)
.750
1.250
5/16-18
.875
.219
(5.56)
.172
(4.37)
.469
(11.91)
.067
(1.70)
.313
(7.94)
.250
(6.35)
1.25
3/8-16
1.00
.266
(6.75)
.210
(5.32)
.562
(14.27)
.079
(2.01)
.375
(9.53)
.313
(7.94)
1.50
1/2-13
2.00
.344
(8.73)
.266
(6.76)
.750
(19.05)
.102
(2.59)
.500
(12.70)
.375
(9.53)
Metric Table - Full and Flat Balls without Safety Feature

Dimensions in:

millimeters
(inches)

Part Number
d1
Thread
l1 
Thread Length
d2
d3
d4
l2
l3
l5
l6
A/F
Static Load in N
Full Ball
Flat Ball
M4 x .7
10
2.5
(.10)
2
(.08)
7
(.28)
.8
(.03)
.2
(.01)
2.1
(.08)
4
(.16)
3
(.12)
3500
12
16
20
25
M5 x .8
12
3
(.12)
2.5
(.10)
8.5
(.33)
1.0
(.04)
.4
(.02)
2.4
(.10)
5
(.20)
4
(.16)
5000
16
20
25
30
M6 x 1.0
16
4
(.16)
3.2
(.13)
10
(.39)
1.3
(.06)
.6
(.03)
3
(.12)
6
(.24)
5
(.20)
9000
20
25
30
40
M8 x 1.25
20
5.5
(.22)
4.5
(.18)
13
(.51)
1.8
(.07)
.8
(.03)
3.5
(.04)
8
(.31)
6
(.24)
15000
30
35
40
50
M10 x 1.5
25
7
(.28)
6
(.24)
16
(.63)
2.3
(.09)
.8
(.03)
4.5
(.18)
10
(.39)
8
(.31)
24000
30
40
50
60
M12 x 1.75
30
8.5
(.33)
7.2
(.28)
18
(.71)
2.8
(.11)
1.0
(.04)
5
(.20)
12
(.47)
10
(.39)
30000
50
80
M16 x 2.0
40
12
(.47)
10.7
(.42)
24
(.94)
4.3
(.17)
1.3
(.05)
6
(.24)
16
(.63)
14
(.55)
73000
60
80
Metric Table - Flat Balls with Safety Twist Feature

Dimensions in:

millimeters
(inches)

Part Number
d2
Thread
l1 
Thread Length
d3
d4
l3
l4
l5
l6
A/F
Plain
Flat Ball
Serrated
Flat Ball
M6 x 1.0
16
4
(.16)
3.2
(.13)
.6
(.03)
.45
(.02)
3
(.12)
6
(.24)
5
(.20)
20
25
30
40
M8 x 1.25
20
5.5
(.22)
4.5
(.18)
.8
(.03)
.5
(.02)
3.5
(.04)
8
(.31)
6
(.24)
30
35
40
50
M10 x 1.5
25
7
(.28)
6
(.20)
.8
(.03)
.6
(.02)
4.5
(.18)
10
(.39)
8
(.31)
30
40
50
60
M12 x 1.75
30
8.5
(.33)
7.2
(.28)
1.0
(.04)
.75
(.03)
5
(.20)
12
(.47)
10
(.39)
50
80
M16 x 2.0
40
12
(.47)
10.7
(.42)
1.3
(.05)
1
(.04)
6
(.24)
16
(.63)
14
(.55)
60
80