SM 縫紉機螺紋絲攻VS鑽頭下孔徑表

型號 : SM 縫紉機螺紋

○ SM 縫紉機螺紋

標稱 Nominalsize	鉆頭直徑 Drill dia	2級下孔徑 JIS class 2drill holedia.	JIS 2級內螺紋內徑 JIS class 2 internal thread minor dia		標稱 Nominalsize	鉆頭直徑 Drill dia	2級下孔徑 JIS class 2drill holedia.	JIS 2級內螺紋內徑 JIS class 2 internal thread minor dia
標稱 Nominalsize	鉆頭直徑 Drill dia	2級下孔徑 JIS class 2drill holedia.	最小尺寸 Min	最大尺寸 Max	標稱 Nominalsize	鉆頭直徑 Drill dia	2級下孔徑 JIS class 2drill holedia.	最小尺寸 Min	最大尺寸 Max
SM 1/16-80	1.25	1.28(75%)	1.211	1.281	SM 1/4-24	5.20	5.25(80%)	5.086	5.266
SM 5/64-64	1.55	1.58(80%)	1.513	1.593	SM 9/32-28	6.10	6.20(80%)	6.066	6.256
SM 3/32-100	2.10	2.15(70%)	2.081	2.156	SM 9/32-20	5.70	5.82(80%)	5.631	5.824
SM 3/32-56	1.85	1.91(80%)	1.841	1.936	SM 5/16-28	6.90	6.00(80%)	6.860	7.050
SM 1/8-44	2.50	2.58(80%)	2.485	2.605	SM 5/16-24	6.70	6.84(80%)	6.674	6.864
SM 1/8-40	2.45	2.52(80%)	2.421	2.551	SM 5/16-18	6.30	6.38(85%)	6.254	6.444
SM 9/64-40	2.85	2.91(80%)	2.818	2.948	SM 3/8-28	8.50	8.58(80%)	8.447	8.637
SM 11/64-40	3.65	3.71(80%)	3.612	3.742	SM 3/8-18	7.90	7.97(85%)	7.843	8.053
SM 3/16-32	3.90	3.94(80%)	3.820	3.980	SM 7/16-28	10.10	10.17(80%)	10.034	10.224
SM 3/16-28	3.70	3.82(80%)	3.684	3.844	SM 7/16-16	9.30	9.36(85%)	9.220	9.440
SM 7/32-32	4.70	4.73(80%)	4.614	4.774	SM 1/2-28	11.70	11.76(80%)	11.622	11.812
SM 15/64-28	4.90	5.01(80%)	4.875	5.055	SM 1/2-20	11.30	11.38(80%)	11.190	11.410
SM 1/4-40	5.60	5.69(80%)	5.596	5.726	SM 1/2-12	10.30	10.36(85%)	10.180	10.420
SM 1/4-28	5.30	5.41(80%)	5.272	5.452	SM 9/16-20	12.90	12.90(85%)	12.778	13.018