DIN551 开槽平端紧定螺钉 slotted sit screws with flat point ISO4776 GB73-85
螺纹规格
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| P | 螺距 | | dp | 最大值=公称 | | 最小值 | | n | 公称 | | 最小值 | | 最大值 | | t | 最小值=公称 | | 最大值 | | L0 ① | 公称 |
| | 0.25 | 0.25 | 0.3 | 0.35 | 0.4 | 0.45 | 0.5 | 0.6 | 0.7 | 0.8 | 1 | 1.25 | 1.5 | 1.75 | | 0.5 | 0.6 | 0.7 | 0.8 | 1 | 1.5 | 2 | 2.2 | 2.5 | 3.5 | 4 | 5.5 | 7 | 8.5 | | 0.25 | 0.35 | 0.45 | 0.55 | 0.75 | 1.25 | 1.75 | 1.95 | 2.25 | 3.2 | 3.7 | 5.2 | 6.64 | 8.14 | | 0.2 | 0.2 | 0.2 | 0.25 | 0.25 | 0.4 | 0.4 | 0.5 | 0.6 | 0.8 | 1 | 1.2 | 1.6 | 2 | | 0.26 | 0.26 | 0.26 | 0.31 | 0.31 | 0.46 | 0.46 | 0.56 | 0.66 | 0.86 | 1.06 | 1.26 | 1.66 | 2.06 | | 0.4 | 0.4 | 0.4 | 0.45 | 0.45 | 0.6 | 0.6 | 0.7 | 0.8 | 1 | 1.2 | 1.51 | 1.91 | 2.31 | | 0.4 | 0.4 | 0.48 | 0.56 | 0.64 | 0.72 | 0.8 | 0.96 | 1.12 | 1.28 | 1.6 | 2 | 2.4 | 2.8 | | 0.52 | 0.52 | 0.63 | 0.74 | 0.84 | 0.95 | 1.05 | 1.21 | 1.42 | 1.63 | 2 | 2.5 | 3 | 3.6 | | / | / | / | 2 | 2.5 | 3 | 3 | 4 | 4 | 5 | 6 | 6 | 8 | 10 |
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①,当L≤L0时，倒角角度为120°。
②,材料： a) 钢，性能等级(材料): 14H 22H 按DIN ISO 898-5; b) 不锈钢，强度等级(材料): A1-50按ISO 3506, DIN 267-11; c) 有色金属，强度等级(材料): 铜锌合金CuZn=CU2或CU3按DIN 267-18，由制造商选择 d) 其他强度等级或材料或某种类型的材料，按协议。 |
| 材料 | |
| 通用要求 | | 螺纹 | 公差 |
| | 标准 |
| | 机械性能 ④ | 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 | | 备注 |
| | DIN 267 part 1 | ≤ M1.4：6h
≥ M1.6：6g | | ISO 261。ISO 965，DIN 13 part 15 | | 14H，22H | A1-50 | CuZn = 铜锌合金① | | DIN ISO 898 part 5 | ISO 3506，DIN 267 part 11③ | DIN 267 part 18② | ≤ M1.4：F
≥ M1.6：A | | DIN 267 part 6，DIN ISO 4759 part 1 | 不经处理
22H：blackened (thermally or chemically). | blank | blank | 电镀 DIN 267 Part 9
Other galvanic surface protection according to agreement. | | DIN 267 Part 2. | | DIN 267 Part 19 | | DIN 267 Part 5 | ① A corresponding ISO standard is in preparation.
② CuZn = CU2 or CU3 (according to DIN 267 part 18) at the manufacturer's choice.
③ The ISO 3506-1979 standard is contained in DIN 267 part 1.
④ Other strength classes or materials or a certain type of material by agreement. |
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