沉头孔
螺丝称号
M3M4M5M6M8M10M12M14M16M20M24M30ds 3.3456810121416202430螺纹规格M1.6M2M2.5M3M4M5M6ds’过孔 3.4 4.5 5.5 6.6911141618222633d2(沉头直径)
3.7
4.5
5.6
6.49.610.612.8dk 5.578.5101316182124303645t(≈)1 1.2 1.5 1.6 2.7 2.7 3.3dk′沉头 6.589.511141
7.5202326323948d1(过孔直径) 1.8
2.4
2.9
3.4
4.5
5.5
6.6
k 沉头深3456810121416202430 k′ 2.7 3.6 4.6 5.57.49.21112.814.518.522.528 k′′
3.3
4.4
5.4
6.5
8.6
10.8
13
15.2
17.5
21.5
25.5
32
螺纹规格M8M10M12M14M16M20d2(沉头直径)
17.620.324.428.432.440.4t(≈) 4.6567810d1(过孔直径)9
11
13.5
15.5
17.5
22
1/8″5/32″3/16″1/4″5/16″3/8″1/2″5/8″3/4″3.5 4.5 5.578.510.514172189101214172125285
6
7
8
10
12
15
20
22
常用斜头螺钉沉头沉孔尺寸:
常用螺纹沉头孔尺寸
常用圆头螺丝沉头孔尺寸:
a(角度)
a(角度)六角承孔头螺丝[JIS B1176(1988) *JIS B1176(1976)拔粹
沉头深度±0.5
公制螺丝头沉头孔:
此表适用于沉头螺钉及半沉头螺钉用的沉孔尺寸
英制螺丝头沉头孔:
常用螺纹过孔直径沉头孔直径 ds'φ
φ ds dk
dk'φφφ
ds ds'φ
φφdk'dk
k "
k
d
d
k '
k