Self Tapping Screw Thread Dimensions

A high-quality fastener for businesses to maintain operation efficiency

自攻螺钉螺纹尺寸

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下表显示了公制和英制自攻螺钉的螺距、大径和小径。

仅供参考

公制
帝国

公制

标称尺寸	沥青	大直径		小直径
		最大限度	分钟	最大限度	分钟
2.2	0.8	2.24	2.1	1.63	1.52
2.9	1.1	2.9	2.76	2.18	2.08
3.5	1.3	3.53	3.35	2.64	2.51
3.9	1.4	3.91	3.73	2.92	2.77
4.2	1.4	4.22	4.04	3.1	2.95
4.8	1.6	4.8	4.62	3.58	3.43
5.5	1.8	5.46	5.28	4.17	3.99
6.3	1.8	6.25	6.03	4.88	4.7

帝国

拧紧	每英寸螺纹数	大直径		小直径
		最大限度	分钟	最大限度	分钟
2号	32	0.088	0.083	0.064	0.06
4号	24	0.114	0.109	0.086	0.082
6号	20	0.139	0.132	0.104	0.099
7号	19	0.154	0.147	0.115	0.109
第 8 条	18	0.166	0.159	0.122	0.116
第 10 条	16	0.189	0.182	0.141	0.135
第 12 条	14	0.215	0.208	0.164	0.157
第 14 条	14	0.246	0.237	0.192	0.185

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自攻螺钉螺纹尺寸

公制

帝国

公制

帝国

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