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TAP TYPE SCREW (triangular SCREW) |
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1. it not only reduces workers stress in long time work but also maintains high contracting ability by low twisting power.
2. After assembling, hold tightly
3. On assembling, rate of destruction of the object due to screw stairs is low in spite of high twisting force
4. After assembling, loosening resistant is still high despite high vibration of assembled product.
5. The place where it is first inserted is able to replace with small screws. ("S" TYPE).
6. On assembling, there?s no missing on screw stairs(compare with normal screws) and it does not produce cutting powder(compare with 2nd kind and 3rd kind of iron plate screw)
7. it does not require screw stairs in the hole of the object.
8. It is very ideal type on using hole without screw stairs.
9. Because of low twisting power, by using double screw or triple screw, it is possible to reduce producing time to 1/2 or 1/3. |
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? PUNCHING HOLE
unit: mm
thickness
of the board |
0.6 |
0.89 |
1.0 |
1.2 |
1.6 |
20. |
2.6 |
3.2 |
"B" TYPE |
2 |
1.5 |
1.55 |
1.55 |
1.55 |
1.6 |
16. |
1.65 |
|
2.3 |
1.85 |
1.85 |
1.85 |
1.90 |
1.9 |
1.9 |
1.95 |
1.95 |
2.6 |
2.1 |
2.1 |
2.15 |
2.15 |
2.15 |
2.2 |
2.2 |
2.25 |
3.0 |
2.6 |
2.6 |
2.6 |
2.65 |
2.65 |
3.65 |
2.65 |
2.7 |
3.5 |
3.0 |
3.0 |
3.0 |
3.05 |
3.05 |
3.05 |
3.1 |
3.1 |
4 |
3.55 |
3.55 |
3.55 |
3.55 |
3.6 |
3.6 |
3.6 |
3.6 |
5 |
|
4.45 |
4.45 |
4.45 |
4.5 |
4.5 |
4.55 |
4.55 |
6 |
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5.3 |
5.3 |
5.35 |
5.35 |
5.4 |
5.45 |
8 |
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7.3 |
7.3 |
7.3 |
7.3 |
7.4 |
7.4 |
"P" TYPE |
2.3 |
1.9 |
1.9 |
1.9 |
1.95 |
1.95 |
1.95 |
2.0 |
2.0 |
2.6 |
2.15 |
2.15 |
2.2 |
2.2 |
2.2 |
2.25 |
2.25 |
2.3 |
3 |
2.65 |
2.65 |
2.65 |
2.7 |
2.7 |
2.7 |
2.7 |
2.75 |
4 |
3.6 |
3.6 |
3.6 |
3.6 |
3.65 |
3.65 |
3.65 |
3.65 |
5 |
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4.5 |
4.5 |
4.5 |
4.55 |
4.55 |
4.6 |
4.6 |
6 |
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5.3 |
5.3 |
5.4 |
5.4 |
5.5 |
5.5 |
8 |
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7.3 |
7.3 |
7.3 |
7.3 |
7.4 |
7.4 |
thickness
of the board |
0.8 |
1.0 |
1.2 |
1.6 |
2.0 |
2.6 |
3.2 |
4.0 |
"S" TYPE |
2 |
1.7 |
1.7 |
1.7 |
1.7 |
1.75 |
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2.3 |
2.0 |
2.0 |
2.0 |
2.0 |
2.0 |
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2.6 |
2.3 |
2.3 |
2.3 |
2.3 |
2.35 |
2.35 |
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3 |
2.65 |
2.7 |
2.7 |
2.7 |
2.75 |
2.75 |
2.8 |
2.8 |
3.5 |
3.1 |
3.1 |
3.1 |
3.15 |
3.15 |
3.2 |
3.2 |
3.2 |
4 |
3.6 |
3.6 |
3.65 |
3.65 |
3.7 |
3.7 |
3.7 |
3.7 |
5 |
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4.6 |
4.6 |
4.65 |
4.65 |
4.65 |
4.7 |
4.7 |
6 |
|
5.4 |
5.5 |
5.5 |
5.5 |
5.55 |
5.55 |
5.6 |
8 |
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7.4 |
7.4 |
7.4 |
7.4 |
7.5 |
7.5 |
7.5 |
"C" TYPE |
2 |
1.65 |
1.65 |
1.65 |
1.65 |
1.7 |
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2.3 |
1.95 |
1.95 |
1.95 |
1.95 |
1.95 |
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2.6 |
2.25 |
2.25 |
2.25 |
2.25 |
2.25 |
2.3 |
2.3 |
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3 |
2.55 |
2.6 |
2.6 |
2.6 |
2.65 |
2.65 |
2.7 |
2.7 |
3.5 |
3.0 |
3.0 |
3.0 |
3.05 |
3.05 |
3.1 |
3.1 |
3.1 |
4 |
3.5 |
3.5 |
3.55 |
3.55 |
3.6 |
3.6 |
3.6 |
3.6 |
5 |
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4.5 |
4.5 |
4.55 |
4.55 |
4.55 |
4.6 |
4.6 |
6 |
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5.35 |
5.35 |
5.35 |
5.35 |
5.4 |
5.4 |
5.4 |
8 |
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7.25 |
7.25 |
7.25 |
7.25 |
7.3 |
7.3 |
7.3 |
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| "S" type, "B" type, "P" type, "C" type |
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