DIN7991 内六角沉头螺钉 hexagon socket countersunk head screws ISO10642
螺纹规格
d | |
| P | 螺距 | | α | tol.(+2) | | b | L≤125 | | 125＜L ≤ 200 | | L＞200 | | dk | 最大值=公称 | | 最小值 | | ds | 最大值=公称 | | 最小值 | | e | 最小值 | | k | 最大值 | | s | 公称 | | 最小值 | | 最大值 | | t | 最大值=公称 | | 最小值 |
| | 0.5 | 0.7 | 0.8 | 1 | 1.25 | 1.5 | 1.75 | 2 | 2 | 2.5 | 2.5 | 2.5 | 3 | | 90° | 90° | 90° | 90° | 90° | 90° | 90° | 90° | 90° | 90° | 90° | 60° | 60° | | 12 | 14 | 16 | 18 | 22 | 26 | 30 | 34 | 38 | 42 | 46 | 50 | 54 | | / | / | / | 24 | 28 | 32 | 36 | 40 | 44 | 48 | 52 | 56 | 60 | | / | / | / | / | / | 45 | 49 | 53 | 57 | 61 | 65 | 69 | 73 | | 6 | 8 | 10 | 12 | 16 | 20 | 24 | 27 | 30 | 33 | 36 | 36 | 39 | | 5.7 | 7.64 | 9.64 | 11.57 | 15.57 | 19.48 | 23.48 | 26.48 | 29.48 | 32.38 | 35.38 | 35.38 | 38.38 | | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 24 | | 2.86 | 3.82 | 4.82 | 5.82 | 7.78 | 9.78 | 11.73 | 13.73 | 15.73 | 17.73 | 19.67 | 21.67 | 23.67 | | 2.3 | 2.87 | 3.44 | 4.58 | 5.72 | 6.86 | 9.15 | 11.43 | 11.43 | 13.72 | 13.72 | 16 | 16 | | 1.7 | 2.3 | 2.8 | 3.3 | 4.4 | 5.5 | 6.5 | 7 | 7.5 | 8 | 8.5 | 13.1 | 14 | | 2 | 2.5 | 3 | 4 | 5 | 6 | 8 | 10 | 10 | 12 | 12 | 14 | 14 | | 2.02 | 2.52 | 3.02 | 4.02 | 5.02 | 6.02 | 8.025 | 10.025 | 10.025 | 12.032 | 12.032 | 14.032 | 14.032 | | 2.1 | 2.6 | 3.1 | 4.12 | 5.14 | 6.14 | 8.175 | 10.175 | 10.175 | 12.212 | 12.212 | 14.212 | 14.212 | | 1.2 | 1.8 | 2.3 | 2.5 | 3.5 | 4.4 | 4.6 | 4.8 | 5.3 | 5.5 | 5.9 | 8.8 | 10.3 | | 0.95 | 1.55 | 2.05 | 2.25 | 3.2 | 4.1 | 4.3 | 4.5 | 5 | 5.2 | 5.6 | 8.44 | 9.87 |
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| 材料 | |
| 通用要求 | | 螺纹 | 公差 |
| | 标准 |
| | 机械性能 | 等级 |
| | 标准 |
| | 公差 | 产品等级 |
| | 标准 |
| | 表面处理 | - |
| | - |
| | 表面粗糙度 | | 表面缺陷 | | 验收及包装 |
| | DIN 267 part 1 | | 6g | | DIN 13 part 12,15 | | 8.8 | ≤ M20：A2-70
＞M20：A2-50 | CuZn = 铜锌合金
CU2 或 CU3 由制造商选择 | | ISO 898 part 1 | DIN 267 part 11 | DIN 267 part 18 | | A | | ISO 4759 part 1 | | （Thermally or chemically） blackened | bright | bright | 电镀 DIN 267 part 9
其他表面处理由供需双方协议。 | | DIN 267 part 2 | | DIN 267 part 19 | | DIN 267 part 5 |
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