Shanghai Summery Industrial Machine Co. , Ltd.
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Black Oxide Hex Socket Countersunk Head Screws 4.8 Grade ASME B18.6.3
| Nominal diameterd | Thread pitch P | ds | dk | k | n | t | b | |||||
| max | min | max | min | max | min | nominal | max | min | min | |||
| M1.6 | 0.35 | 2.48 | 2.42 | 3.5 | 3.2 | 1.32 | 1.08 | 0.4 | 0.6 | 0.46 | 0.35 | 2.5 |
| M2 | 0.4 | 2.98 | 2.92 | 4 | 3.7 | 1.52 | 1.28 | 0.5 | 0.7 | 0.56 | 0.5 | 3 |
| M2.5 | 0.45 | 3.47 | 3.395 | 5 | 4.7 | 1.82 | 1.58 | 0.6 | 0.8 | 0.66 | 0.6 | 3.5 |
| M3 | 0.5 | 3.97 | 3.895 | 6 | 5.7 | 2.1 | 1.7 | 0.8 | 1 | 0.86 | 0.7 | 4 |
| M4 | 0.7 | 4.97 | 4.895 | 8 | 7.64 | 2.7 | 2.3 | 1.2 | 1.51 | 1.26 | 1 | 5 |
| M5 | 0.8 | 5.97 | 5.895 | 10 | 9.64 | 3.2 | 2.8 | 1.2 | 1.51 | 1.28 | 1.2 | 6 |
| M6 | 1 | 7.96 | 7.87 | 12 | 11.57 | 3.74 | 3.26 | 1.6 | 1.91 | 1.66 | 1.4 | 8 |
| M8 | 1.25 | 9.96 | 9.87 | 15 | 14.57 | 5.24 | 4.76 | 2 | 2.31 | 2.06 | 1.9 | 10 |
| M10 | 1.5 | 11.95 | 11.84 | 20 | 19.48 | 6.24 | 5.76 | 2.5 | 2.81 | 2.56 | 2.4 | 12 |