120°小沉头铆螺母 (摘自GB 17880.4-1999)
螺纹规格为M3～M12、M10×1、M12×1.5的120°小沉头铆螺母。
标记示例：
螺纹规格D=M8、长度规格l=15mm、材料为ML10、表面镀锌钝化的120°小沉头铆螺母的标记示例：
铆螺母 GB/T17880.4 M8×15
螺纹规格为M3～M12、M10×1、M12×1.5的120°小沉头铆螺母：
螺纹规格
|
D
-0.03
-0.10
|
d1
H12
|
dk
max
|
k
|
r
|
l
max
|
l1
|
d0
+0.15
0
|
h1
参考
|
铆接厚度h
推荐
|
粗牙
D
|
细牙
D×P
|
M3
|
—
|
5
|
4
|
6.5
|
0.35
|
0.2
|
7.5
|
2.5
|
5
|
5.8
|
0.5～1
|
M3
|
—
|
5
|
4
|
6.5
|
0.35
|
0.2
|
8.5
|
3.5
|
5
|
5.8
|
1～2
|
M3
|
—
|
5
|
4
|
6.5
|
0.35
|
0.2
|
9.5
|
4.5
|
5
|
5.8
|
2～3
|
M4
|
—
|
6
|
4.8
|
8
|
0.5
|
0.2
|
9
|
2.5
|
6
|
7.5
|
0.5～1
|
M4
|
—
|
6
|
4.8
|
8
|
0.5
|
0.2
|
10
|
3.5
|
6
|
7.5
|
1～2
|
M4
|
—
|
6
|
4.8
|
8
|
0.5
|
0.2
|
11
|
4.5
|
6
|
7.5
|
2～3
|
M5
|
—
|
7
|
5.6
|
9
|
0.6
|
0.2
|
11
|
3
|
7
|
9.3
|
0.5～1
|
M5
|
—
|
7
|
5.6
|
9
|
0.6
|
0.2
|
12
|
4
|
7
|
9.3
|
1～2
|
M5
|
—
|
7
|
5.6
|
9
|
0.6
|
0.2
|
13
|
5
|
7
|
9.3
|
2～3
|
M6
|
—
|
9
|
7.5
|
11
|
0.6
|
0.2
|
13.5
|
4
|
9
|
11
|
0.5～1.5
|
M6
|
—
|
9
|
7.5
|
11
|
0.6
|
0.2
|
15
|
5.5
|
9
|
11
|
1.5～3
|
M6
|
—
|
9
|
7.5
|
11
|
0.6
|
0.2
|
16.5
|
7
|
9
|
11
|
3～4.5
|
M8
|
—
|
11
|
9.2
|
13
|
0.6
|
0.3
|
15
|
4.5
|
11
|
12.3
|
0.5～1.5
|
M8
|
—
|
11
|
9.2
|
13
|
0.6
|
0.3
|
16.5
|
6
|
11
|
12.3
|
1.5～3
|
M8
|
—
|
11
|
9.2
|
13
|
0.6
|
0.3
|
18
|
7.5
|
11
|
12.3
|
3～4.5
|
M10
|
M10×1
|
13
|
11
|
16
|
0.85
|
0.3
|
18
|
5
|
13
|
15
|
0.5～1.5
|
M10
|
M10×1
|
13
|
11
|
16
|
0.85
|
0.3
|
19.5
|
6.5
|
13
|
15
|
1.5～3
|
M10
|
M10×1
|
13
|
11
|
16
|
0.85
|
0.3
|
21
|
8
|
13
|
15
|
3～4.5
|
M12
|
M12×1.5
|
15
|
13
|
18
|
0.85
|
0.3
|
21
|
5.5
|
15
|
17.5
|
0.5～1.5
|
M12
|
M12×1.5
|
15
|
13
|
18
|
0.85
|
0.3
|
22.5
|
7
|
15
|
17.5
|
1.5～3
|
M12
|
M12×1.5
|
15
|
13
|
18
|
0.85
|
0.3
|
24
|
8.5
|
15
|
17.5
|
3～4.5
|
