| Notes | 1. Due to our manufacturing process, point to point dimensions may not meet the ANSI B18.2.4.1M and B18.2.4.2M-1979 (R1995) standard.
2. Metric thread pitches are designated as pitch length in millimeters.
3. All ceramic screws and ceramic bolts are fully threaded.
4. All dimensions shown are in millimeters.
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Dimensional Specifications - Metric Flat Head, Socket
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Flat Socket Head Metric Fastener Dimensions Per ANSI B18.6.7M-1985
|
Size x Thread Pitch
|
Body
Diameter
|
Head Diameter
Theoretical
Sharp
|
Head
Diameter
Actual
Min.
|
Head
Height
Max
Ref
|
Underhead
Fillet
Radius
|
| M2x0.4 |
1.65 - 2.0 |
4.1 - 4.4 |
3.5 |
1.2
|
.4 - .8
|
| M3x0.5 |
2.58 - 3.0
|
5.9 - 6.3 |
5.2 |
1.7 |
.6 - 1.2
|
| M4x0.7 |
3.43 - 4.0
|
8.9 - 9.4 |
8.0
|
2.7 |
.8 - 1.6
|
| M5x0.8 |
4.36 - 5.0 |
9.8 - 10.4 |
8.9 |
2.7 |
1.0 - 2.0 |
| M6x1.0 |
5.21 - 6.0 |
11.9 - 12.6 |
10.9
|
3.3
|
1.2 - 2.4
|
| M8x1.25 |
7.04 - 8.0
|
16.5 - 17.3 |
15.4 |
4.6 |
1.6 - 3.2
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© 2010 Ceramco, Inc., all rights
reserved.
P.O. Box 300, 1467 East Main Street, Center Conway, NH 03813
Tel: (603) 447-2090 | Fax: (603) 447-3906
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