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四方槽大扁头 AB ABR自攻螺钉 ASME B 18.6.3 (T25-III+T40) - 2013

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10#

12#

1/4

5/16

3/8

ASME B 18.6.3 (T25-III+T40) - 2013 四方槽大扁头 AB ABR自攻螺钉

尺寸单位: inch

美标ASME B18.6.3 (T25-III+T40) - 2013 ASME 四方槽大扁头 AB ABR自攻螺钉

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公差

螺纹尺寸
d

10#

12#

1/4

5/16

3/8

d	公称
PP
槽号
M	参考值
P	最大值
	最小值
d_k	最大值
	最小值
k	最大值
	最小值
R	最大值
L₀ ^⑥	公称
Y ^⑥	螺纹过渡长度(全螺纹)	最大值
b ^⑥	螺纹长度 (长螺钉)	最小值

0.0860	0.0990	0.1120	0.1250	0.1380	0.1510	0.1640	0.1900	0.2160	0.2500	0.3125	0.3750
32	28	24	20	20	19	18	16	14	14	12	12
00	0	0	1S	1S	1S	2S	2R	3S	3S	4R	4R
0.050	0.070	0.070	0.091	0.091	0.091	0.112	0.112	0.133	0.133	0.191	0.191
0.033	0.038	0.038	0.055	0.055	0.055	0.063	0.075	0.080	0.080	0.100	0.100
0.028	0.028	0.028	0.040	0.040	0.040	0.048	0.060	0.065	0.065	0.085	0.085
0.194	0.226	0.257	0.289	0.321	0.352	0.384	0.448	0.511	0.573	0.698	0.823
0.180	0.211	0.241	0.272	0.303	0.333	0.364	0.425	0.487	0.546	0.666	0.787
0.053	0.061	0.069	0.078	0.086	0.094	0.102	0.118	0.134	0.150	0.183	0.215
0.044	0.051	0.059	0.066	0.074	0.081	0.088	0.103	0.118	0.133	0.162	0.191
0.129	0.151	0.169	0.191	0.211	0.231	0.254	0.283	0.336	0.375	0.457	0.538
5/8	3/4	13/16	15/16	1	1-1/8	1-1/4	1-3/8	1-5/8	1-13/16	1-13/16	1-7/8
0.031	0.036	0.042	0.050	0.050	0.053	0.056	0.062	0.071	0.071	0.083	0.083
0.520	0.590	0.670	0.750	0.830	0.910	0.980	1.140	1.300	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,方槽内壁略带锥度，以保证插入深量规与有镀层螺钉凹槽的配合。为使插入深测量深度适用于有涂镀层的螺钉，制造者在生产（镦头）时，应为其留出必要的加工余量。
③,表中的“R”表示正常插入深入。“S”表示短（浅）插入深度。
④,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。
⑤,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。
⑥,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 18.6.3T25-III+T40 - 2013 ASME B 18.6.3H7B-III+T1A - 2024

采用标准

ASME/ANSI B 18.6.3 (T48) - 2013

自攻螺钉拧入性试验用标准试验板厚度和孔径 [Table 48]

ASME/ANSI B 18.6.3 (T49) - 2013

TRS型自挤自攻螺钉的最大扭矩 [Table 49]

ASME/ANSI B 18.6.3 (T50) - 2013

自攻螺钉的抗扭强度 [Table 50]

ASME B 18.6.3 (DATA-G) - 2013

机械螺钉和自攻螺钉的通用要求

ASME B 18.6.3 (catalog) - 2013

产品表单总览

工艺相关

ASME B 18.6.3 (T24) - 2013

开槽扁圆头螺钉 [Table 24] (ASTM F837, F468)

ASME B 18.6.3 (T24+T40) - 2013

开槽扁圆头 AB ABR自攻螺钉

ASME B 18.6.3 (T25-I/T25-IA) - 2013

十字槽大扁头螺钉 I、IA型

ASME B 18.6.3 (T25-I/T25-IA+T40) - 2013

十字槽大扁头 AB ABR自攻螺钉

ASME B 18.6.3 (T25-III) - 2013

四方槽大扁头螺钉

ASME B 18.6.3 (T25-VI) - 2013

梅花槽大扁头螺钉

ASME B 18.6.3 (T25-VI+T40) - 2013

梅花槽大扁头 AB ABR自攻螺钉

引用参考

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 5280 - 2002

自攻螺钉用螺纹

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	[国际] ISO 5835 (F1) - 1991	内六角接骨螺钉 (HA型) [Figure 1] Screw With Shallow Thread (HA) [Figure 1]
2	[国际] ISO 5835 (F3) - 1991	内六角接骨螺钉 (HB型) [Figure 3] Screw With Deep Thread (HB) [Figure 3]
3	[万禧] WS 9200 - 2014	内六角圆柱头自攻螺钉 Hexagon socket cheese head self-tapping screws
4	[美标] ASME B 18.6.5M (T11) - 2000	米制四方槽沉头自攻钉 [Table 11] Metric square recessed flat countersunk tapping screws [Table 11] 供应商(2)
5	[美标] ASME B 18.6.5M (T11) - 2000 (R2010)	米制四方槽沉头自攻钉 [Table 11] Metric Type Ill Square-Recessed Flat Countersunk Head Tapping Screws [Table 11] 供应商(2)
6	[美标] ASME B 18.6.3 (H1B-III+T1A) - 2024	四方槽沉头螺钉 (ASTM F837, F468) Square Recessed Countersunk Head Screws (ASTM F837, F468)
7	[美标] ASME B 18.6.3 (H2B-III+T1A) - 2024	四方槽半沉头 AB ABR自攻螺钉 Square recessed raised countersunk head tapping screws - Type AB and ABR
8	[美标] ASME B 18.6.3 (H3B-III+T1A) - 2024	方槽82°沉头清根 AB ABR自攻螺钉 Undercut 82-deg Square Recessed Countersunk Head Tapping Screws - Type AB (ABR)
9	[美标] ASME B 18.6.3 (H3D-III+T1A) - 2024	四方槽82°半沉头清根 AB ABR自攻螺钉 Square recessed undercut oval countersunk head tapping screws - Type AB and ABR
10	[美标] ASME B 18.6.3 (H5C-III+T1A) - 2024	四方槽盘头 AB ABR自攻螺钉 Square Recessed Pan Head Tapping Screws - Type AB and ABR
11	[美标] ASME B 18.6.3 (H6B-III+T1A) - 2024	十字槽球面圆柱头 AB ABR自攻螺钉 Cross recessed raised cheese head tapping screws - Type AB and ABR
12	[美标] ASME B 18.6.3 (H7B-III+T1A) - 2024	四方槽大扁头 AB ABR自攻螺钉 Square Recessed Mushroom Head Tapping Screws - Type AB and ABR
13	[美标] ASME B 18.6.3 (H11B-III+T1A) - 2024	方槽圆头 AB ABR自攻螺钉 Square Recessed Round Head Tapping Screws - Type AB and ABR
14	[美标] ASME B 18.6.3 (T2-III+T40) - 2013	方槽82度沉头AB ABR自攻螺钉 82° Square Recessed Countersunk Head Tapping Screws - Type AB (ABR)
15	[美标] ASME B 18.6.3 (T10-III+T40) - 2013	方槽82°沉头清根 AB ABR自攻螺钉 Undercut 82-deg Square Recessed Countersunk Head Tapping Screws - Type AB (ABR)
16	[美标] ASME B 18.6.3 (T8-III+T40) - 2013	四方槽半沉头 AB ABR自攻螺钉 Square recessed raised countersunk head tapping screws - Type AB and ABR
17	[美标] ASME B 18.6.3 (T12-III+T40) - 2013	四方槽82°半沉头清根 AB ABR自攻螺钉 Square recessed undercut oval countersunk head tapping screws - Type AB and ABR
18	[美标] ASME B 18.6.3 (T19-III+T40) - 2013	四方槽盘头 AB ABR自攻螺钉 Square Recessed Pan Head Tapping Screws - Type AB and ABR
19	[美标] ASME B 18.6.3 (T22-III+T40) - 2013	四方槽球面圆柱头 AB ABR自攻螺钉 Square Recessed Raised Cheese Head Tapping Screws - Type AB and ABR
20	[美标] ASME B 18.6.3 (T36-III+T40) - 2013	方槽圆头 AB ABR自攻螺钉 Square Recessed Round Head Tapping Screws - Type AB and ABR
21	[美标] ASME B 18.6.5M (T19) - 2000	米制四方槽盘头自攻螺钉 [Table 19] Metric square slot pan head tapping screws [Table 19]
22	[美标] ASME B 18.6.5M (T15) - 2000 (R2010)	米制四方槽半沉头自攻钉 [Table 15] Metric Type III square-recessed oval countersunk head tapping screws
23	[美标] ASME B 18.6.5M (T19) - 2000 (R2010)	米制四方槽盘头自攻螺钉 [Table 19] Metric Type Ill Square-Recessed Pan Head Tapping Screws [Table 19]
24	[医药行业标准] YY 0018 (T1) - 2016	HA型内六角接骨螺钉 [Table 1] Screw With Shallow Thread (HA) [Table 1]
25	[医药行业标准] YY 0018 (T4) - 2016	HB型内六角接骨螺钉 [Table 4] Screw With Deep Thread (HB) [Table 4]