This post I will show standard hole for bolt joint. Screw – nut, bolts, screws are mechanical components to hold two or more mechanical parts. Surface finishing of these parts are important. Bolts are coated to prevent corrosion and special features. Screws are used in many industries such as Automotive, Construction and Electronics.
Below is standard holes for bolt joint.
| Diameter of thread d | Round screw and hex screw | Flat screw, oval screw, wood screw D | ||||||
| Type 1 | Type 2 | H1 | H2 | H3 | H4 | D1 | ||
| D | ||||||||
| 2 | 4.3 | 1.4 | 2 | 4.6 | ||||
| 2.5 | 5 | 1.7 | 2.5 | 5.6 | ||||
| 3 | 6.5 | 2 | 3 | 6.5 | ||||
| 4 | 8 | 4 | 5.5 | 2.8 | 4 | 12 | 8.3 | |
| 5 | 10 | 5 | 7 | 3.5 | 5 | 15 | 10.3 | |
| 6 | 11 | 12 | 6 | 8 | 4 | 6 | 18 | 12.3 |
| 8 | 14 | 15 | 8 | 11 | 5 | 7.5 | 20 | 16.5 |
| 10 | 17 | 18 | 10 | 13 | 6 | 9 | 24 | 20 |
| 12 | 19 | 20 | 12 | 26 | 7 | 11 | 26 | 24 |
| 14 | 22 | 24 | 14 | 18 | 8 | 12 | 30 | 28 |
| 16 | 26 | 28 | 16 | 20 | 9 | 13 | 34 | 31 |
| 18 | 28 | 30 | 18 | 23 | 10 | 15 | 36 | 35 |
| 20 | 32 | 34 | 20 | 25 | 11 | 16 | 40 | 39 |
May you line? Standard dimension of bolts and nuts, screws.
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