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梅花槽盘头 AB ABR自攻螺钉 ASME B 18.6.3 (H5C-VI+T1A) - 2024

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10#

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1/4

5/16

3/8

7/16

1/2

ASME B 18.6.3 (H5C-VI+T1A) - 2024 梅花槽盘头 AB ABR自攻螺钉

尺寸单位: inch

美标ASME B18.6.3 (H5C-VI+T1A) - 2024 ASME1 梅花槽盘头 AB ABR自攻螺钉

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公差最小破坏扭矩牌号等级

螺纹尺寸
d

d	公称
PP
d_k	最大值
	最小值
k	最大值
	最小值
R	最小值
槽号
M	参考值
P	最大值
	最小值
L₀ ^④	公称
Y ^④	螺纹过渡长度(全螺纹)	最大值
b ^④	螺纹长度 (长螺钉)	最小值

0.0600	0.0730	0.0860	0.0990	0.1120	0.1250	0.1380	0.1510
48	42	32	28	24	20	20	19
0.116	0.142	0.167	0.193	0.219	0.245	0.270	0.296
0.104	0.130	0.155	0.180	0.205	0.231	0.256	0.281
0.044	0.053	0.062	0.071	0.080	0.089	0.097	0.106
0.036	0.044	0.053	0.062	0.070	0.079	0.087	0.096
0.005	0.005	0.010	0.010	0.010	0.015	0.015	0.015
T5	T6	T8	T8	T10	T10	T15	T15
0.058	0.069	0.094	0.094	0.111	0.111	0.132	0.132
0.020	0.030	0.035	0.038	0.045	0.055	0.055	0.060
0.015	0.025	0.030	0.033	0.035	0.045	0.045	0.050
7/16	9/16	5/8	3/4	13/16	15/16	1	1-1/8
0.021	0.024	0.031	0.036	0.042	0.050	0.050	0.053
0.360	0.440	0.520	0.590	0.670	0.750	0.830	0.910

螺纹尺寸
d

10#

12#

1/4

5/16

3/8

7/16

1/2

d	公称
PP
d_k	最大值
	最小值
k	最大值
	最小值
R	最小值
槽号
M	参考值
P	最大值
	最小值
L₀ ^④	公称
Y ^④	螺纹过渡长度(全螺纹)	最大值
b ^④	螺纹长度 (长螺钉)	最小值

0.1640	0.1900	0.2160	0.2500	0.3125	0.3750	0.4375	0.5000
18	16	14	14	12	12	10	10
0.322	0.373	0.425	0.492	0.615	0.740	0.863	0.987
0.306	0.357	0.407	0.473	0.594	0.716	0.837	0.958
0.115	0.133	0.151	0.175	0.218	0.261	0.305	0.348
0.105	0.122	0.139	0.162	0.203	0.244	0.284	0.325
0.015	0.020	0.025	0.035	0.040	0.040	0.050	0.055
T20	T25	T27	T30	T40	T45	T50	T55
0.155	0.178	0.200	0.221	0.266	0.312	0.352	0.446
0.070	0.085	0.085	0.100	0.120	0.145	0.159	0.180
0.055	0.070	0.070	0.085	0.105	0.130	0.144	0.165
1-1/4	1-3/8	1-5/8	1-13/16	1-13/16	1-7/8	1-7/8	1-7/8
0.056	0.062	0.071	0.071	0.083	0.083	0.100	0.100
0.980	1.140	1.300	1.500	1.500	1.500	1.500	1.500

①,若以小数规定公称直径，应省略小数前和小数点后第四位的零。
②,螺钉末端钉尖上不允许因螺纹辗压而形成的虚尖，允许略带圆弧或圆钝形末端。
③,小于等于8#的螺钉，螺纹牙顶平面宽度不应超过0.004in，大于8#的应不超过0.006in。
④,正常情况下，当螺钉长度小于等于其公称长度L0时应采用全螺纹，过渡螺纹长度应小于等于Y；若螺钉长度大于其公称长度L0可采用半牙型式，但其螺纹长度应不小于b。

替代列表

ASME B 18.6.3T19-VI+T40 - 2013 ASME B 18.6.3H5C-VI+T1A - 2024

引用参考

GB /T 1172 - 1999

黑色金属硬度及强度换算值

GB /T 5267.1 - 2002

镀锌、镀镍、镀镉、复合镀等层镀层盐雾腐蚀的防护性能

GB /T 193 - 2003

普通螺纹（一般用途米制螺纹）- 直径与螺距系列 (ISO 261: 1998, MOD)

GB /T 3106 - 2016

紧固件 - 螺栓、螺钉和螺柱 - 公称长度和螺纹长度 (ISO 888:2012, MOD)

GB /T 3 - 1997

普通螺纹收尾、肩距、退刀槽和倒角 (ISO 3508:1976 / ISO 4755:1983)

GB /T 5779.1 - 2000

紧固件表面缺陷 - 螺栓、螺钉和螺柱 - 一般要求

GB /T 5779.3 - 2000

紧固件表面缺陷 - 螺栓、螺钉和螺柱 - 特殊要求

注：技术数据仅供参考，请以官方原件为准！

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