标准
DIN965-1990.pdf |
名称
十字槽沉头螺钉 |
英文名
Countersunk flat head screws |
替代标准
GB819
|
材料
不锈钢 钢 |
表面
本色，钝化，电镀... |
性能等级
A2-50 A2-70 4.8 |
特点
持平于基材 |
|
与GB819一样，DIN965沉头螺钉可以嵌入工件表面，不会突出或凸出，使得工件表面更加平整美观后发生塑性变形的作用。尺寸方面DIN965也几乎接近于GB819（但还有有些差异的）。
标准原文档下载：DIN965-1990.pdf
如果螺纹为半牙，参考:DIN965半牙样式
尺寸表（单位：MM)
| 螺纹尺寸d | |
| P | 螺距 |
| a | 最大值 |
| dk | 最大值=公称 |
| 最小值 | |
| k | 最大值 |
| r | 最大值 |
| x | 最大值 |
| 槽号 | |
| M1 | ≈ |
| M2 | ≈ |
| 螺纹长度b | 最小值 |
| M1.6 | M2 | M2.5 | M3 | (M3.5) | M4 | M5 | M6 | M8 | M10 |
| 0.35 | 0.4 | 0.45 | 0.5 | 0.6 | 0.7 | 0.8 | 1 | 1.25 | 1.5 |
| 0.7 | 0.8 | 0.9 | 1 | 1.2 | 1.4 | 1.6 | 2 | 2.5 | 3 |
| 3 | 3.8 | 4.7 | 5.6 | 6.5 | 7.5 | 9.2 | 11 | 14.5 | 18 |
| 2.75 | 3.5 | 4.4 | 5.3 | 6.14 | 7.14 | 8.84 | 10.57 | 14.07 | 17.57 |
| 0.96 | 1.2 | 1.5 | 1.65 | 1.93 | 2.2 | 2.5 | 3 | 4 | 5 |
| 0.4 | 0.5 | 0.7 | 0.8 | 0.95 | 1 | 1.3 | 1.6 | 2 | 2.5 |
| 0.9 | 1 | 1.1 | 1.25 | 1.5 | 1.75 | 2 | 2.5 | 3.2 | 3.8 |
| 0 | 1 | 1 | 1 | 2 | 2 | 2 | 3 | 4 | 4 |
| 1.7 | 2.35 | 2.7 | 2.9 | 3.9 | 4.4 | 4.6 | 6.6 | 8.7 | 9.6 |
| 1.8 | 2.2 | 2.5 | 2.8 | 3.7 | 4 | 4.4 | 6.1 | 8.5 | 9.4 |
| - | - | - | - | - | - | - | - | - | - |
| 材料 | 钢 | 不锈钢 | 有色金属 | |
| 通用要求 | DIN 267 part 1 | |||
| 螺纹 | 公差 | 6g① | ||
| 标准 | DIN 13 part 12,DIN 13 part 15 | |||
| 机械性能 | 等级 | 4.8，5.8，8.8 | A2-70，A4-70 | CuZn = 铜锌合金 CU2 或 CU3 由制造商选择 |
| 标准 | ISO 898 part 1 | DIN 267 part 11 | DIN 267 part 18 | |
| 公差 | 产品等级 | A | ||
| 标准 | ISO 759 part 1 | |||
| 表面处理 | - | 不经处理 8.8：blackened （thermally or chemically） |
bright | bright |
| - | 电镀 DIN 267 part 9 其他表面处理由供需双方协议。 |
|||
| 表面粗糙度 | DIN 267 part 2 | |||
| 表面缺陷 | DIN 267 part 19 | |||
| 验收及包装 | DIN 267 part 5 | |||
| 备注 | ① Only for screws without surface protection. 6 g makes it possible for normal coating thicknesses to be applied in accordance with DIN 267 part 9, the reference line not being exceeded. Depending on the coating thickness required, a larger fundamental deviation shall be selected than that for the g position. This might, however, impair the resistance to stripping of the bolt / nut assembly. | |||
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