Bảng thông số đường kính lỗ khoan trước Taro : ren hệ met , Hệ inch (Unified)

đường kính lỗ khoan trước taro

Bảng thông số đường kính lỗ khoan trước Taro : ren hệ met

Ghi chú :

( ) chỉ số trong , là chỉ số 5H(cấp 2) với ren thường , và là chỉ số 4H-5H(cấp 1 ) ren mịn .
chữ in đậm là chỉ số ren thường
ĐK lỗ là chỉ số ren cấp 2 (JIS)

呼び size	内径 ĐK lỗ		ドリル径（ĐK khoan)		呼び size	内径 ĐK lỗ		ドリル径（ĐK khoan)
呼び size	Max	Min	ドリル径（ĐK khoan)		呼び size	Max	Min	ドリル径（ĐK khoan)
M1×0.25	(0.785)	(0.729)	0.75		M18×2.5	15.744	15.294	15.5
M1×0.2	(0.821)	(0.783)	0.8		M18×2	16.21	15.835	16
M1.1×0.25	(0.885)	(0.829)	0.85		M18×1.5	16.676	16.376	16.5
M1.1×0.2	(0.921)	(0.883)	0.9		M18×1	17.153	16.917	17
M1.2×0.25	(0.985)	(0.929)	0.95		M20×2.5	17.744	17.294	17.5
M1.2×0.2	(1.021)	(0.983)	1		M20×2	18.21	17.835	18
M1.4×0.3	(1.142)	(1.075)	1.1		M20×1.5	18.676	18.376	18.5
M1.4×0.2	(1.221)	(1.183)	1.2		M20×1	19.153	18.917	19
M1.6×0.35	(1.321)	(1.221)	1.25		M22×2.5	19.744	19.294	19.5
M1.6×0.2	(1.421)	(1.383)	1.4		M22×2	20.21	19.835	20
M1.7×0.35	1.421	1.321	1.35		M22×1.5	20.676	20.376	20.5
M1.7×0.2	1.521	1.483	1.45		M22×1	21.153	20.917	21
M1.8×0.35	1.521	1.421	1.45		M24×3	21.252	20.752	21
M1.8×0.2	(1.621)	(1.583)	1.6		M24×2	22.21	21.835	22
M2×0.4	1.679	1.567	1.6		M24×1.5	22.676	22.376	22.5
M2×0.25	(1.785)	(1.729)	1.75		M24×1	23.153	22.917	23
M2.2×0.45	1.838	1.713	1.75		M25×2	23.21	22.835	23
M2.2×0.25	(1.985)	(1.929)	1.95		M25×1.5	23.676	23.376	23.5
M2.3×0.4	1.979	1.867	1.9		M25×1	24.153	23.917	24
M2.3×0.25	2.085	2.029	2.05		M26×1.5	24.676	24.376	24.5
M2.5×0.45	2.138	2.013	2.1		M27×3	24.252	23.752	24
M2.5×0.35	2.221	2.121	2.2		M27×2	25.21	24.835	25
M2.6×0.45	2.238	2.113	2.2		M27×1.5	25.676	25.376	25.5
M2.6×0.35	2.321	2.221	2.2		M27×1	26.153	25.917	26
M3×0.5	2.599	2.459	2.5		M28×2	26.21	25.835	26
M3×0.35	2.721	2.621	2.7		M28×1.5	26.676	26.376	26.5
M3.5×0.6	3.01	2.85	2.9		M28×1	27.153	26.917	27
M3.5×0.35	3.221	3.121	3.2		M30×3.5	26.771	26.211	26.5
M4×0.7	3.422	3.242	3.3		M30×3	27.252	26.752	27
M4×0.5	3.599	3.459	3.5		M30×2	28.21	27.835	28
M4.5×0.75	3.878	3.688	3.8		M30×1.5	28.676	28.376	28.5
M4.5×0.5	4.099	3.959	4		M30×1	29.153	28.917	29
M5×0.8	4.334	4.134	4.2		M32×2	30.21	29.835	30
M5×0.5	4.599	4.459	4.5		M32×1.5	30.676	30.376	30.5
M5.5×0.5	5.099	4.959	5		M33×3.5	29.771	29.211	29.5
M6×1	5.153	4.917	5		M33×3	30.252	29.752	30
M6×0.75	5.378	5.188	5.3		M33×2	31.21	30.835	31
M6×0.5	5.599	5.459	5.5		M33×1.5	31.676	31.376	31.5
M7×1	6.153	5.917	6		M35×1.5	33.676	33.376	33.5
M7×0.75	6.378	6.188	6.3		M36×4	32.27	31.67	32
M7×0.5	6.599	6.459	6.5		M36×3	33.252	32.752	33
M8×1.25	6.912	6.647	6.8		M36×2	34.21	33.835	34
M8×1	7.153	6.917	7		M36×1.5	34.676	34.376	34.5
M8×0.75	7.378	7.188	7.3		M38×1.5	36.676	36.376	36.5
M8×0.5	7.599	7.459	7.5		M39×4	35.27	34.67	35
M9×1.25	7.912	7.647	7.8		M39×3	36.252	35.752	36
M9×1	8.153	7.917	8		M39×2	37.21	36.835	37
M9×0.75	8.378	8.188	8.3		M39×1.5	37.676	37.376	37.5
M10×1.5	8.676	8.376	8.5		M40×3	37.252	36.752	37
M10×1.25	8.912	8.647	8.8		M40×2	38.21	37.835	38
M10×1	9.153	8.917	9		M40×1.5	38.676	38.376	38.5
M10×0.75	9.378	9.188	9.3		M42×4.5	37.799	37.129	37.5
M10×0.5	9.599	9.459	9.5		M42×4	38.27	37.67	38
M11×1.5	9.676	9.376	9.5		M42×3	39.252	38.752	39
M11×1	10.153	9.917	10		M42×2	40.21	39.835	40
M11×0.75	10.378	10.188	10.3		M42×1.5	40.676	40.376	40.5
M12×1.75	10.441	10.106	10.3		M45×4.5	40.799	40.129	40.5
M12×1.5	10.676	10.376	10.5		M45×4	41.27	40.67	41
M12×1.25	10.912	10.647	10.8		M45×3	42.252	41.752	42
M12×1	11.153	10.917	11		M45×2	43.21	42.835	43
M12×0.5	11.599	11.459	11.5		M45×1.5	43.676	43.376	43.5
M14×2	12.21	11.835	12		M48×5	43.297	42.587	43
M14×1.5	12.676	12.376	12.5	M48×4	44.27	43.67	44
M14×1	13.153	12.917	13	M48×3	45.252	44.752	45
M15×1.5	13.676	13.376	13.5	M48×2	46.21	45.835	46
M15×1	14.153	13.917	14	M48×1.5	46.676	46.376	46.5
M16×2	14.21	13.835	14	M50×3	47.252	46.752	47
M16×1.5	14.676	14.376	14.5	M50×2	48.21	47.835	48
M16×1	15.153	14.917	15	M50×1.5	48.676	48.376	48.5
M17×1.5	15.676	15.376	15.5
M17×1	16.153	15.917	16

Bảng thông số đường kính lỗ khoan trước Taro : Hệ inch (Unified)

呼び size	内径 ĐK lỗ		ドリル径（ĐK khoan)
呼び size	Max.	Min.	ドリル径（ĐK khoan)
No. 0 – 80UNF	1.305	1.182	1.25
No. 1 – 64UNC	1.582	1.425	1.55
No. 1 – 72UNF	1.612	1.474	1.55
No. 2 – 56UNC	1.871	1.695	1.8
No. 2 – 64UNF	1.912	1.756	1.85
No. 3 – 48UNC	2.146	1.941	2.1
No. 3 – 56UNF	2.197	2.025	2.1
No. 4 – 40UNC	2.385	2.157	2.3
No. 4 – 48UNF	2.458	2.271	2.4
No. 5 – 40UNC	2.697	2.487	2.6
No. 5 – 44UNF	2.74	2.551	2.7
No. 6 – 32UNC	2.895	2.642	2.8
No. 6 – 40UNF	3.022	2.82	2.9
No. 8 – 32UNC	3.53	3.302	3.4
No. 8 – 36UNF	3.606	3.404	3.5
No.10 – 24UNC	3.962	3.683	3.9
No.10 – 32UNF	4.165	3.963	4.1
No.12 – 24UNC	4.597	4.344	4.5
No.12 – 28UNF	4.724	4.496	4.6
No.12 – 32UNEF	4.826	4.623	4.7
1/4 – 20UNC	5.257	4.979	5.1
1/4 – 28UNF	5.588	5.36	5.5
1/4 – 32UNEF	5.689	5.487	5.6
5/16 – 18UNC	6.731	6.401	6.6
5/16 – 24UNF	7.035	6.782	6.9
5/16 – 32UNEF	7.264	7.087	7.1
3/8 – 16UNC	8.153	7.798	8
3/8 – 24UNF	8.636	8.382	8.5
3/8 – 32UNEF	8.864	8.662	8.7
7/16 – 14UNC	9.55	9.144	9.4
7/16 – 20UNF	10.033	9.729	9.9
7/16 – 28UNEF	10.337	10.135	10.2
1/2 – 13UNC	11.023	10.592	10.9
1/2 – 20UNF	11.607	11.329	11.5
1/2 – 28UNEF	11.938	11.71	11.8
9/16 – 12UNC	12.446	11.989	12.2
9/16 – 18UNF	13.081	12.751	12.9
9/16 – 24UNEF	13.385	13.132	13.2
5/8 – 11UNC	13.868	13.386	13.6
5/8 – 18UNF	14.681	14.351	14.5
5/8 – 24UNEF	14.986	14.732	14.8
3/4 – 10UNC	16.84	16.307	16.6
3/4 – 16UNF	17.678	17.323	17.5
3/4 – 20UNEF	17.957	17.679	17.8
7/8 – 9UNC	19.761	19.177	19.6
7/8 – 14UNF	20.675	20.27	20.5
7/8 – 20UNEF	21.132	20.854	21
1 – 8UNC	22.606	21.971	22.3
1 – 12UNF	23.571	23.114	23.3
1 – 14UNS	23.825	23.445	23.6
1 – 20UNEF	24.307	24.029	24.1
1 1/8 – 7UNC	25.349	24.638	25
1 1/8 – 12UNF	26.746	26.289	26.5
1 1/8 – 18UNEF	27.381	27.051	27.2
1 1/8 – 8UN	25.781	25.146	25.5
1 1/4 – 7UNC	28.524	27.813	28.2
1 1/4 – 12UNF	29.921	29.464	29.6
1 1/4 – 18UNEF	30.556	30.226	30.3
1 1/4 – 8UN	28.956	28.321	28.5
1 3/8 – 6UNC	31.115	30.353	30.8
1 3/8 – 12UNF	33.096	32.639	32.8
1 3/8 – 18UNEF	33.731	33.401	33.5
1 3/8 – 8UN	32.131	31.496	31.8
1 1/2 – 6UNC	34.29	33.528	34
1 1/2 – 12UNF	36.271	35.814	36
1 1/2 – 18UNEF	36.906	36.576	36.7
1 1/2 – 8UN	35.306	34.671	35
1 5/8 – 18UNEF	40.081	39.751	39.8
1 5/8 – 8UN	38.481	37.846	38.1
1 5/8 – 12UN	39.446	38.989	39.1
1 3/4 – 5UNC	39.827	38.964	39.5
1 3/4 – 8UN	41.656	41.021	41.3
1 3/4 – 12UN	42.621	42.164	42.3
2 – 4 1/2UNC	45.593	44.679	45.2
2 – 8UN	48.006	47.371	47.8
2 – 12UN	48.971	48.514	48.6