3.4紧固件用六角花形（GB/T 6188—2000、GB/T 6189—1986)

紧固件用六角花形GB6188—2000、GB6189—1986

紧固件用六角花形见表1.1-18–表1.1-19。

表1.1-18螺栓、螺钉用内六角花形GB6188（mm)

(1)基本尺寸：

槽号No.	公称尺寸		止规插人深度	槽号No.	公称尺寸		止规插人深度
	A	B	f(max)		A	B	f(max)
6	1.75	1.27	0.31	45	7.93	5.64	1.02
8	2.4	1.75	0.41	50	8.95	6.45	1.27
10	2.8	2.05	0.51	55	11.35	8.05	1.27
15	3.35	2.4	0.51	60	13.45	9.6	1.27
20	3.95	2.85	0.64	70	15.7	11.2	1.52
25	4.5	3.25	0.64	80	17.75	12.8	1.52
30	5.6	4.05	0.76	90	20.2	14.4	1.78
40	6.75	4.85	0.89	100	22.4	16	2.03
c、t	沉孔：C≤0.13mm，对槽号≤No.15；C≤0.25mm，对槽号> No. 15；插入深度t见相关产品标准

(2)通规极限尺寸：

槽号	A		B		Rt		Re		H
No.	min	max	min	max	min	max	min	max	min	max
6	1.695	1.709	1.21	1.224	0.371	0.396	0.13	0.134	1.33	1.82
8	2.335	2.349	1.672	1.686	0.498	0.523	0.188	0.193	2.54	3.05
10	2.761	2.776	1.979	1.993	0.585	0.609	0.227	0.231	3.05	3.56
15	3.295	3.309	2.353	2.367	0.704	0.728	0.265	0.269	3.3	3.81
20	3.879	3.893	2.764	2.778	0.846	0.871	0.303	0.307	3.56	4.07
25	4.451	4.465	3.17	3.185	0.907	0.932	0.371	0.378	3.94	4.45
30	5.543	5.557	3.958	3.972	1.182	1.206	0.448	0.454	4.44	4.95
40	6.673	6.687	4.766	4.78	1.415	1.44	0.544	0.548	5.08	5.59
45	7.841	7.856	5.555	5.57	1.784	1.808	0.572	0.576	5.71	6.22
50	8.857	8.872	6.366	6.38	1.804	1.828	0.773	0.777	5.97	6.48
55	11.245	11.259	7.93	7.945	2.657	2.682	0.765	0.769	6.22	6.73
60	13.302	13.317	9.49	9.504	2.871	2.895	1.065	1.069	7.68	8.17
70	15.588	15.603	11.085	11.099	3.465	3.489	1.192	1.196	8.46	8.96
80	17.619	17.635	12.646	12.661	3.625	3.629	1.524	1.529	9.4	9.9
90	20.021	20.035	14.232	14.246	4.456	4.48	1.527	1.534	10.06	10.56
100	22.231	22.245	15.82	15.834	4.913	4.937	1.718	1.724	10.85	11.35

(3)止规A和Re极限尺寸:

槽号	A		B			R	e	H
No.	min	max	max	min	max	min	max	±0.25
6	1.778	1.785	1.181	0.231	0.241	0.173	0.18	1.57
8	2.419	2.425	1.664	0.36	0.37	0.231	0.238	2.79
10	2.845	2.852	1.956	0.431	0.441	0.269	0.276	3.3
15	3.379	3.385	1.956	0.398	0.408	0.307	0.315	3.56
20	3.963	3.97	2.616	0.602	0.614	0.345	0.353	3.81
25	4.56	4.566	2.868	0.637	0.647	0.429	0.436	4.19
30	5.652	5.659	3.886	0.939	0.949	0.505	0.513	4.7
40	6.807	6.814	4.661	1.112	1.125	0.612	0.619	5.33
45	7.976	7.983	4.661	1.11	1.123	0.64	0.648	5.97
50	8.992	8.999	6.413	1.628	1.64	0.84	0.848	6.22
55	11.405	11.412	7.684	2.176	2.189	0.845	0.853	6.4S
60	13.488	13.495	7.684	2.153	2.164	1.158	1.165	7.92
70	15.774	15.781	10.262	2.545	2.557	1.285	1.292	8.71
80	17.831	17.838	11.76	2.608	2.621	1.628	1.635	9.52
90	20.257	20.264	12.827	3.111	3.121	1.648	1.656	10.31
100	22.467	22.473	15.24	4.006	4.018	1.839	1.847	11.1

(4)圆柱止规直径尺寸:

槽号	圆柱止规直径B		槽号	圆柱止规直径B
No.	min	max	No.	min	max
6	1.44	1.445	45	6.66	6.665
8	1.92	1.925	50	7.38	7.385
10	2.28	2.285	55	9.66	9.665
15	2.76	2.765	60	11.34	11.345
20	3.28	3.285	70	13.34	13.345
25	3.72	3.725	80	14.92	14.925
30	4.66	4.665	90	17.16	17.165
40	5.6	5.605	100	19.02	19.025

表1.1-19 E型六角花形GB6189（mm)

(1)六角花形基本尺寸:

形式	A		B		R	r
代号	max	min	max	min	min	max
E4	3.734	3.659	2.711	2.651	0.689	0.369
E5	4.623	4.548	3.328	3.253	0.914	0.42
E6	5.588	5.513	3.953	3.878	1.274	0.407
E8	7.341	7.251	5.225	5.15	1.617	0.572
E10	9.246	9.156	6.744	6.654	2.355	0.686
E12	10.999	10.889	7.852	7.762	2.399	0.877
E14	12.726	12.616	9.139	9.m	2.644	1.093
E16	14.555	14.445	10.432	10.322	3.013	1.245
E18	16.46	16.35	11.829	11.719	3.361	1.441
E20	18.238	18.108	13.137	13.027	3.647	1.641
E24	21.921	21.791	15.688	15.578	4.635	1.824
E28	25.477	25.347	18.233	18.103	5.386	2.121
E32	28.982	28.852	21.291	21.161	5.643	2.873
E36	32.589	32.429	23.94	23.81	6.356	3.226
E40	36.145	35.985	26.546	26.416	7.059	3.571

(2)六角花形E型综合量规的尺寸:

形式代号		A	B	d	k′	s
E4	max	3.766	2.75	1.346	0.863	3.37
	min	3.757	2.741	1.342	0.737	3.361
E5	max	4.655	3.36	1.803	1.066	4.152
	min	4.646	3.351	1.799	0.94	4.143
E6	max	5.62	3.995	2.514	1.117	4.985
	min	5.611	3.986	2.51	0.991	4.976
E8	max	7.373	5.265	3.225	1.574	6.55
	min	7.364	5.256	3.221	1.448	6.541
E10	max	9.278	6.763	4.648	1.955	8.206
	min	9.269	6.754	4.644	1.829	8.197
E12	max	11.031	7.881	4.8	2.413	9.796
	min	11.022	7.872	4.796	2.287	9.787
E14	max	12.758	9.176	5.257	3.149	11.351
	min	12.749	9.167	5.253	3.023	11.342
E16	max	14.587	10.446	6.019	3.378	12.976
	min	14.578	10.437	6.015	3.252	12.967
E18	max	16.492	11.843	6.73	3.68	14.576
	min	16.4S3	11.834	6.726	3.734	14.567
E20	max	18.27	13.164	7.264	4.216	16.177
	min	18.261	13.155	7.26	4.09	16.168
E24	max	21.953	15.704	9.321	5.765	19.402
	min	21.944	15.695	9.317	5.639	19.393
E28	max	25.509	18.27	10.794	7.061	22.582
	min	25.5	18.261	10.79	6.935	22.573
E32	max	29.014	21.318	11.302	8.153	25.808
	min	29.005	21.309	11.298	8.027	25.799
E36	max	32.621	23.959	12.725	9.321	29.034
	min	32.612	23.95	12.721	9.195	29.025
E40	max	36.177	26.575	14.096	10.617	32.209
	min	36.168	26.566	14.092	10.491	32.2

(3)E型旋具扳手的截面尺寸:

形式代号	A		B
	max	min	max	min
E4	3.9	3.83	2.87	2.81
E5	4.8	4.72	3.5	3.42
B6	5.77	5.69	4.13	4.05
E8	7.56	7.47	5.43	5.35
E10	9.46	9.37	6.96	6.87
E12	11.23	11.12	8.06	7.97
E14	12.96	12.85	9.36	9.27
E16	14.82	14.71	10.69	10.58
E18	16.75	16.64	12.12	12.01
E20	18.54	18.41	13.42	13.31
E24	22.23	22.1	15.98	15.87
E28	25.78	25.65	18.54	18.41
E32	29.29	29.16	21.6	21.47
E36	32.98	32.82	24.3	24.17
E40	36.53	36.37	26.9	26.77