• M2
  • M2.5
  • M3
  • (M3.5)
  • M4
  • M5
  • M6
  • M8
  • M10
  • 3
  • 4
  • 5
  • 6
  • 8
  • 10
  • 12
  • 14
  • 16
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尺寸单位: 毫米(mm)

①,A) amax ≤ 2P ； B) amax ≤ 2.5P
②,ds≈螺纹中径或螺纹直径。
ISO 14581 - 2013 梅花槽沉头螺钉

尺寸单位: 毫米(mm)

①,A) amax ≤ 2P ； B) amax ≤ 2.5P
②,ds≈螺纹中径或螺纹直径。
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ISO 14581_M2X3
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ISO 14581 - 2013 梅花槽沉头螺钉
公称直径 M2
P 螺距
dk 理论值 最大值
实际值 最大值=公称
最小值
k 最大值
x 最大值
槽号
A 参考
t 最大值
最小值
0.4
4.4
3.8
3.5
1.2
1
T6
1.75
0.64
0.51
千件钢制重≈kg
0.101
螺纹长度b 最小值
全螺纹
技术条件和引用标准
材料
钢 不锈钢
通用技术条件
螺纹 公差
标准
机械性能 等级
代号
标准
公差 产品等级
标准
内六角花型
表面处理 -
-
表面缺陷
验收及包装
备注
ISO 8992
6g
ISO 261，ISO 965-2
4.8、8.8① A2-50、A4-50
A2-70、A4-70
04.8、08.8 A2-050、A4-050
A2-070、A4-070②
ISO 898-1 ISO 3506-1③
A
ISO 4759-1
ISO 10664
不经处理；
电镀技术要求按 ISO 4042；
非电解锌片涂层技术要求按 ISO 10683；
热浸镀锌技术要求按ISO 10684；		 Clean and bright；
钝化处理技术要求按 ISO 10684
如需其他技术要求或表面处理，应由供需协议。
ISO 6157-1 /
ISO 3269
① Because of their head configurations, these screws might not meet the minimum ultimate tensile loads specified in IS0 898-1. They shall meet the other requirements for the respective property class specified in ISO 898-1.
In addition, when full-size screws are tensile tested in accordance with ISO 898-1, they shall withstand the reduced minimum ultimate tensile loads given in Table 3. When tested to the ultimate tensile load, the fracture might occur in the threaded section, the head, the shank or at the head/shank junction.
② The marking symbols for stainless steel fasteners with reduced loadability are intended to be included in the nextrevision of ISO 3506-1.
③ Because of their head configurations, these screws might not meet the minimum ultimate tensile loads specified in ISO 3506-1. They shall meet the other requirements for the respective steel grade specified in ISO 3506-1.
In addition, when full-size screws are tensile tested in accordance with ISO 3506-1, they shall withstand the reduced minimum ultimate tensile loads given in Table 3. When tested to failure, the fracture might occur in the threaded section, the head, the shank or at the head/shank junction.
For reduced minimum ultimate tensile load values determined on the basis of Rm,min and As,nom according to property classes 50 and 70 of ISO 3506-1, see Table 3.
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