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浙江有为紧固件有限公司
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法兰螺母（机械设备用压板法兰螺母） 型号:DIN6331 YWF6331 性能等级：8级 10级 12级 原材料：SWRCH35K 10B21 40Cr 8级以上硬度：26-36HRC 表面处理：待定 机械性能按GB/T3098.2 |
| 序号 | 型号 |
规格 D |
牙距P | 对边S | 总厚度K | 法兰直径dc | 法兰厚度h | ||||
| max | min | max | min | max | min | max | min | ||||
| 1 | DIN6331 | M6 | 1 | 10 | 9.78 | 9.29 | 8.71 | 14 | 13.73 | 3.125 | 2.875 |
| 2 | DIN6331 | M8 | 1.25 | 13 | 12.73 | 12.35 | 11.65 | 18 | 17.73 | 3.65 | 3.35 |
| 3 | YWF6331 | M8 | 1.25 | 14 | 13.73 | 12.35 | 11.65 | 18 | 17.73 | 3.65 | 3.35 |
| 4 | DIN6331 | M10 | 1.5 | 16 | 15.73 | 15.35 | 14.65 | 22 | 21.67 | 4.15 | 3.85 |
| 5 | YWF6331 | M10 | 1.5 | 17 | 16.73 | 15.35 | 14.65 | 22 | 21.67 | 4.15 | 3.85 |
| 6 | DIN6331 | M12 | 1.75 | 18 | 17.73 | 18.35 | 17.65 | 25 | 24.67 | 4.15 | 3.85 |
| 7 | YWF6331 | M12 | 1.75 | 19 | 18.73 | 18.35 | 17.65 | 26 | 25.4 | 4.15 | 3.85 |
| 8 | YWF6331 | M14 | 2 | 22 | 21.67 | 21.35 | 20.65 | 29.9 | 29 | 4.65 | 4.35 |
| 9 | DIN6331 | M16 | 2 | 24 | 23.67 | 24.42 | 23.58 | 31 | 30.61 | 5.15 | 4.85 |
| 10 | YWF6331 | M16 | 2 | 24 | 23.67 | 24.42 | 23.58 | 34.5 | 33.5 | 5.15 | 4.85 |
| 11 | YWF6331 | M18 | 2.5 | 27 | 26.6 | 27.42 | 26.58 | 38 | 37 | 5.65 | 5.35 |
| 12 | DIN6331 | M20 | 2.5 | 30 | 29.16 | 30.42 | 29.58 | 37 | 36.61 | 6.15 | 5.85 |
| 13 | YWF6331 | M20 | 2.5 | 30 | 29.16 | 30.42 | 29.58 | 42.8 | 41.8 | 6.15 | 5.85 |
| 14 | YWF6331 | M22 | 2.5 | 34 | 33 | 34.42 | 33.58 | 46.8 | 45.8 | 6.15 | 5.85 |
| 15 | DIN6331 | M24 | 3 | 36 | 35 | 36.5 | 35.5 | 45 | 44.61 | 6.15 | 5.85 |
| 16 | DIN6331 | M27 | 3 | 41 | 40 | 40.5 | 39.5 | 50 | 49.61 | 7.18 | 6.82 |
| 17 | DIN6331 | M30 | 3.5 | 46 | 45 | 45.5 | 44.5 | 58 | 57.54 | 8.18 | 7.82 |
| 18 | DIN6331 | M36 | 4 | 55 | 53.8 | 54.6 | 53.4 | 68 | 67.54 | 10.18 | 9.82 |
| 19 | DIN6331 | M42 | 4.5 | 65 | 63.1 | 63.6 | 62.4 | 80 | 79.54 | 12.215 | 11.785 |
| 20 | DIN6331 | M48 | 5 | 75 | 73.1 | 72.6 | 71.4 | 92 | 91.46 | 14.215 | 13.785 |
