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开槽82°沉头清根自攻螺钉 ASME B 18.6.3 (H3A+T1A) - 2024

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10#

12#

14#

1/4

16#

18#

5/16

20#

24#

3/8

7/16

1/2

ASME B 18.6.3 (H3A+T1A) - 2024 开槽82°沉头清根自攻螺钉

尺寸单位: inch

美标ASME B18.6.3 (H3A+T1A) - 2024 ASME18.6 开槽82°沉头清根自攻螺钉

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单重计算公差美制螺纹极限尺寸米/英制螺纹对照螺纹直径与受力截面积最小破坏扭矩牌号等级

螺纹尺寸
d

10#

12#

d	公称
类型 ^③	符号
L ^②	A型&AB型
L ^②	其他类型
d_k	最大值
d_k	最小值
k	最大值
k	最小值
n	最大值
n	最小值
t	最大值
t	最小值

0.0600	0.0730	0.0860	0.0990	0.1120	0.1250	0.1380	0.1510	0.1640	0.1900	0.2160
●◆▲	●◆▲	●◆▲■	●◆▲■	●◆▲■	●◆▲■	●◆▲■	●◆▲	●◆▲■	●◆▲■	●◆▲■
3/16	3/16	3/16	7/32	1/4	1/4	5/16	3/8	7/16	1/2	9/16
1/8	5/32	3/16	7/32	1/4	1/4	5/16	3/8	7/16	1/2	9/16
0.112	0.137	0.162	0.187	0.212	0.237	0.262	0.287	0.312	0.362	0.412
0.096	0.120	0.144	0.167	0.191	0.215	0.238	0.262	0.285	0.333	0.380
0.025	0.031	0.036	0.042	0.047	0.053	0.059	0.064	0.070	0.081	0.092
0.018	0.023	0.028	0.033	0.038	0.043	0.048	0.053	0.058	0.068	0.078
0.023	0.026	0.031	0.035	0.039	0.043	0.048	0.048	0.054	0.060	0.067
0.016	0.019	0.023	0.027	0.031	0.035	0.039	0.039	0.045	0.050	0.056
0.011	0.014	0.016	0.019	0.022	0.024	0.027	0.030	0.032	0.037	0.043
0.007	0.009	0.011	0.012	0.014	0.016	0.017	0.019	0.021	0.024	0.028

螺纹尺寸
d

14#

1/4

16#

18#

5/16

20#

24#

3/8

7/16

1/2

d	公称
类型 ^③	符号
L ^②	A型&AB型
L ^②	其他类型
d_k	最大值
d_k	最小值
k	最大值
k	最小值
n	最大值
n	最小值
t	最大值
t	最小值

0.2420	0.2500	0.2680	0.2940	0.3125	0.3200	0.3720	0.3750	0.4375	0.5000
◆	●▲■	◆	◆	●▲■	◆	◆	●▲■	●▲■	●▲■
5/8	5/8	11/16	3/4	13/16	13/16	7/8	/	/	/
/	5/8	/	/	5/8	/	/	5/8	3/4	3/4
0.462	0.477	0.512	0.581	0.597	0.611	0.711	0.717	0.760	0.815
0.427	0.442	0.475	0.522	0.556	0.569	0.664	0.670	0.715	0.765
0.103	0.107	0.114	0.126	0.134	0.137	0.159	0.161	0.156	0.156
0.089	0.092	0.099	0.109	0.116	0.119	0.139	0.140	0.133	0.130
0.075	0.075	0.075	0.084	0.084	0.084	0.094	0.094	0.094	0.106
0.064	0.064	0.064	0.072	0.072	0.072	0.081	0.081	0.081	0.091
0.047	0.050	0.053	0.058	0.062	0.063	0.074	0.075	0.072	0.072
0.032	0.032	0.035	0.039	0.041	0.042	0.049	0.049	0.045	0.046

①,头部边缘为倒圆或平的。
②,小于等于表中长度的螺钉，为清根沉头型。
③,适用的螺钉类型标记符号如下所示:
●AB型普通自攻螺钉，见表[Table 4.1.1.1-1]
◆ A型普通自攻螺钉，见表[Table 4.1.1.4-1]
▲ B型和BP型普通自攻螺钉见表[Table 4.1.1.2-1]；BF和BT自切自攻螺钉见表[Table 4.1.2.1-1]
■ C型普通自攻螺钉见表[Table VI-1]；D，F，G和T型自切自攻螺钉见表[Table 4.1.2.2-1]；TRS型见表[Table 4.1.3-1]

替代列表

ASME B 18.6.3T9+T40 - 2013 ASME B 18.6.3H3A+T1A - 2024

长度公差

　　Tapping screws can be made to any length, but they are generally produced in fractional length increments of 1/16 in. for screws up to 1/2 in. long, 1/8 in. for screws over 1/2 in. through 1-1/2 in. long, 1/4 in. for screws over 1-1/2 in. through 3 in. long, and 1/2 in. for screws over 3 in. long.

类型	标称螺钉长度	长度公差
A、AB、BP	≤1	±0.03
A、AB、BP	＞1	±0.05
B、BF、BT、C、D、F、G、T、TRS	≤3/4	-0.03
	＞3/4,≤1-1/2	-0.05
	＞1-1/2	-0.06

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！

类似标准及供货信息

1	[国标] GB /T 5283 - 2017	开槽沉头自攻螺钉 Slotted Countersunk（Flat）Head Tapping Screws
2	[国标] GB /T 5283 - 1985	开槽沉头自攻螺钉 Slotted Countersunk Head Tapping Screws
3	[美标] IFI 502 - 1982	米制开槽沉头自攻钉 Metric Slotted Countersunk Head Tapping Screws
4	[德标] DIN 7972 - 1990	开槽沉头自攻钉 Slotted countersunkhead tapping screws 供应商(2)
5	[国际] ISO 1482 - 2011	开槽沉头自攻螺钉 Slotted Countersunk (Flat) Head Tapping Screws
6	[国际] ISO 1482 - 1983	开槽沉头自攻螺钉 Slotted countersunk head tapping screws
7	[日标] JIS B 1115 (T6) - 2015	开槽沉头自攻钉 [Table 6] Slotted Countersunk Head Tapping Screws [Table 6]
8	[日标] JIS B 1115 (JA4) - 2015	开槽沉头自攻钉 [表JA4] Slotted Countersunk head tapping screws [Table JA3]
9	[日标] JIS B 1115 (T2) - 1996	开槽沉头自攻钉 [表2] Slotted countersunk head tapping screws [Table 2]
10	[日标] JIS B 1115 (AT2) - 1996	开槽沉头自攻钉 [附表2] Slotted Countersunk head tapping screws [Annex Table 2]
11	[美标] ASME/ANSI B 18.6.3 - 2010	80°开槽沉头自攻钉 80° Machine Screw and Tapping Screw Nuts (Inch Seires)
12	[法国] NF E 25-660 - 1994	开槽沉头自攻螺钉 Slotted Countersunk Head Tapping Screws
13	[英标] BS 4174 - 1972	开槽80°沉头自攻钉 [Table 8] Slotted 80°countersunk Head Self-Tapping Screws [Table 8]
14	[英标] BS 4174 - 1972	开槽80°沉头清根自攻钉 [Table 10] Slotted 80° Truncated Countersunk Head Screws [Table 10]
15	[澳标] AS /NZS 4404 - 1996	米制开槽沉头自攻螺钉 ISO metric slotted countersunk head tapping screws
16	[台湾] CNS 4303 - 2000	开槽沉头自攻螺钉 Slotted Countersunk Head Tapping Screws
17	[德标] DIN EN ISO 1482 - 2011	开槽沉头自攻钉 Slotted Countersunkhead Tapping Screws 供应商(2)
18	[美标] ASME B 18.6.3 (H1A+T1A) - 2024	82°开槽沉头自攻螺钉 AB(ABR)型 82° Slotted Flat Coutersunk Head Tapping Screws - Type AB (ABR)
19	[美标] ASME B 18.6.3 (T1+T40) - 2013	82°开槽沉头自攻螺钉 AB(ABR)型 [Table 1+Table 40] 82° Slotted Flat Coutersunk Head Tapping Screws - Type AB (ABR) [Table 1+Table 40]
20	[美标] ASME B 18.6.3 (T9+T40) - 2013	开槽82°沉头清根自攻螺钉 [Table 9+Table40] 82° Slotted Undercut 82-deg Flat Countersunk Head Tapping Screws [Table 9]
21	[美标] ASME B 18.6.5M (T8) - 2000 (R2010)	米制开槽沉头自攻螺钉 [Table 8] Metric slotted countersunk head tapping screws [Table 8]
22	[美标] ASME B 18.6.4 - 1998 (R2005)	A型开槽沉头自攻螺钉 [Table 9] Slotted Flat Countersunk Head Tapping Screws - Type A
23	[美标] ASME B 18.6.4 - 1998 (R2005)	B,BP型开槽沉头自攻螺钉 [Table 9] Slotted Flat Countersunk Head Tapping Screws - Type B and BP
24	[美标] ASME B 18.6.4 - 1998 (R2005)	C型开槽沉头自攻螺钉(统一螺纹) [Table 9] Slotted Flat Countersunk Head Tapping Screws - Type C
25	[美标] ASME B 18.6.4 - 1998 (R2005)	AB型开槽沉头自攻螺钉 [Table 9] Slotted Flat Countersunk Head Tapping Screws - Type AB
26	[美标] ASME B 18.6.4 - 1998 (R2005)	开槽沉头清根自攻螺钉 B,BP型 [Table 13] Slotted Undercut Flat Countersunk Head Tapping Screws - Type B and BP Thread Forming [Table 13]
27	[美标] ASME B 18.6.4 - 1998 (R2005)	开槽沉头清根自攻螺钉 C型(统一螺纹) [Table 13] Slotted Undercut Flat Countersunk Head Tapping Screws - Type C Thread Forming [Table 13]
28	[美标] ASME B 18.6.4 - 1998 (R2005)	开槽沉头清根自攻螺钉 AB型 [Table 13] Slotted Undercut Flat Countersunk Head Tapping Screws - Type AB Thread Forming [Table 13]
29	[美标] ASME B 18.6.4 - 1998 (R2005)	开槽100°沉头自攻螺钉 B,BP型 [Table VI1] Slotted 100° Flat Countersunk Head Tapping Screws - Type B and BP Thread Forming [Table VI1]
30	[美标] ASME B 18.6.4 - 1998 (R2005)	开槽100°沉头自攻螺钉 AB型 [Table VI1] Slotted 100° Flat Countersunk Head Tapping Screws - Type AB Thread Forming [Table VI1]