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Concealed-Head - CSOS, CSS Installed in the milling blind hole , concealed head bolt request opposite side without damage
All dimensions are in millimeters
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| UNIFIED |
Thread size |
Type |
Thread code |
Length code "L" +.002-.005 Length code is in 16th of an inch |
Min. Sheet Thichness |
Blind Mounting Hole Dia. +.003- .000 |
Min. Depth of Blind Hole |
T Min. |
A Max. |
B Max. |
C Max. |
H Nom. |
Min.Dist Hole C/L to Edge |
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|
Stainless steel |
.187 | .250 | .312 | .375 | .500 | .625 | .750 | 1.00 | ||||||||||||
|
.112-40 (#4-40) |
CSS | 440 | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 16 | .062 | .213 | .043 | .188 | .043 | .165 | .212 | .250 | .188 | |
| CSOS | .093 | .075 | .075 | |||||||||||||||||
|
.138-32 (#6-32) |
CSS | 632 | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 16 | .062 | .290 | .043 | .250 | .043 | .213 | .289 | .312 | .219 | |
| CSOS | .093 | .075 | .075 | |||||||||||||||||
|
.164-32 (#8-32) |
CSS | 832 | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 16 | .062 | .312 | .043 | .250 | .043 | .245 | .311 | .344 | .250 | |
| CSOS | .093 | .075 | .075 | |||||||||||||||||
|
.190-32 (#10-32) |
CSS | 032 | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 16 | .062 | .344 | .043 | .375 | .043 | .290 | .343 | .375 | .281 | |
| CSOS | .093 | .075 | .075 | |||||||||||||||||
|
.250-20 (1/4-20) |
CSS | 0420 | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 16 | .062 | .390 | .043 | .375 | .043 | .354 | .389 | .438 | .375 | |
| CSOS | .093 | .075 |
.075
|
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All dimensions are in millimeters
| METRIC |
Thread size x Pitch |
Type |
Thread code |
Length code "L" +.005-.013 Length code is in millimeters |
Min. Sheet Thichness |
Blind Mounting Hole Dia. +.008 |
Min. Depth of Blind Hole |
T Min. |
A Max. |
B Max. |
C Max. |
H Nom. |
Min.Dist Hole C/L to Edge |
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|
Stainless steel |
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| M3X0.5 | CSS | M3 | 4 | 6 | 8 | 10 | 12 | 16 | 20 | 25 | 1.6 | 5.41 | 1.1 | 5 | 1.1 | 4.2 | 5.39 | 6.35 | 4.8 | |
| CSOS | 2.4 | 1.91 | 1.91 | |||||||||||||||||
| M4X0.7 | CSS | M4 | 4 | 6 | 8 | 10 | 12 | 16 | 20 | 25 | 1.6 | 7.92 | 1.1 | 6.5 | 1.1 | 6.23 | 7.9 | 8.74 | 6.4 | |
| CSOS | 2.4 | 1.91 | 1.91 | |||||||||||||||||
| M5X0.8 | CSS | M5 | 4 | 6 | 8 | 10 | 12 | 16 | 20 | 25 | 1.6 | 8.74 | 1.1 | 9.6 | 1.1 | 7.37 | 8.72 | 9.53 | 7.2 | |
| CSOS | 2.4 | 1.91 | 1.91 | |||||||||||||||||
| M6X1 | CSS | M6 | 4 | 6 | 8 | 10 | 12 | 16 | 20 | 25 | 2.4 | 9.9 | 1.91 | 9.6 | 1.91 | 9 | 9.98 | 11.11 | 9.5 | |
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