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精密100°沉头开槽机械螺钉 (ASTM F837/F468) [TABLE 2.2.1-5] ASME B 18.6.3 (H1E) - 2024

选择规格尺寸点击↓

10#

1/4

5/16

3/8

7/16

1/2

9/16

5/8

ASME B 18.6.3 (H1E) - 2024 精密100°沉头开槽机械螺钉 (ASTM F837/F468) [TABLE 2.2.1-5]

尺寸单位: inch

美标ASME B18.6.3 (H1E) - 2024 ASME18.6.3 1 精密100°沉头开槽机械螺钉 (ASTM F837/F468) [TABLE 2.2.1-5]

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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#

1/4

5/16

3/8

7/16

1/2

9/16

5/8

d	公称
PP
d_k	最大值
	最小值
k	参考值
n	最大值
	最小值
t	最大值
	最小值
F	最大值
	最小值
G
α	最大值
	最小值

0.1120	0.1380	0.1640	0.1900	0.2500	0.3125	0.3750	0.4375	0.5000	0.5625	0.6250
40	32	32	24	20	18	16	14	13	12	11
0.212	0.262	0.312	0.362	0.477	0.597	0.717	0.837	0.957	1.077	1.197
0.188	0.235	0.282	0.329	0.437	0.550	0.662	0.774	0.887	1.000	1.112
0.049	0.060	0.072	0.083	0.110	0.138	0.165	0.193	0.221	0.249	0.276
0.039	0.048	0.054	0.060	0.075	0.084	0.094	0.094	0.106	0.118	0.133
0.031	0.039	0.045	0.050	0.064	0.072	0.081	0.081	0.091	0.102	0.116
0.024	0.030	0.036	0.042	0.055	0.069	0.083	0.097	0.111	0.125	0.139
0.017	0.022	0.027	0.031	0.042	0.053	0.065	0.076	0.088	0.099	0.111
0.025	0.028	0.031	0.034	0.040	0.047	0.053	0.060	0.066	0.073	0.080
0.019	0.021	0.023	0.260	0.031	0.037	0.042	0.047	0.053	0.058	0.063
0.167	0.214	0.261	0.307	0.415	0.526	0.638	0.750	0.862	0.974	1.086
101°	101°	101°	101°	101°	101°	101°	101°	101°	101°	101°
99°	99°	99°	99°	99°	99°	99°	99°	99°	99°	99°

①,头部边缘为倒圆或平的。
②,光杆直径应不小于2A级螺纹最小中径，且不大于公称（基本）螺纹大径。
③,机械螺钉的螺纹长度：

1）螺纹规格≤5#:

公称长度≤3倍公称直径的应为满扣产品，头下螺纹肩距≤1倍螺距。

公称长度＞3倍公称直径到 1-1/8 in 的，允许头下肩距最大不超过2倍螺距。

若无其他规定，长螺钉的最小螺纹长度为1 in 。

2）螺纹规格≥6#:

公称长度≤3倍公称直径的应为满扣产品，头下螺纹肩距≤1倍螺距。

公称长度＞3倍公称直径到 2 in 的，允许头下螺纹肩距最大不超过2倍螺距。

若无其他规定，长螺钉的最小螺纹长度为 1.5 in 。

替代列表

ASME/ANSI B 18.6.3 - 2010 ASME B 18.6.3T5 - 2013 ASME B 18.6.3H1E - 2024

长度公差

　　Machine screws can be made to any length, but they are generally produced in fractional length increments of 1/16 in. for screws up to 5/8 in. long, 1/8 in. for screws over 5/8 in. through 1-1/2 in. long, and 1/4 in. for screws over 1-1/2 in. long.

标称螺钉尺寸的长度公差
标称螺钉长度	螺纹规格
标称螺钉长度	0000~00	0~12	1/4~3/4
≤1/2	-0.01	-0.02	-0.03
＞1/2,≤1	-0.02	-0.03	-0.03
＞1,≤2	/	-0.06	-0.06
＞2	/	-0.09	-0.09

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

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4	[国标] GB 948 - 1988	开槽沉头不脱出螺钉 Slotted Countersunk Head Screws with Waisted Shank
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14	[日标] JIS B 1101 (JA4) - 2017	开槽沉头螺钉附表JA.4 Slotted Countersunk Head Screws - Table JA.4
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17	[日标] JIS B 1179 (T1-1) - 1994	开槽沉头螺栓 (精制) [Table 1-1] Slotted Flat Head Bolts, Fine Finished [Table 1-1]
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20	[美标] ASME/ANSI B 18.6.3 - 2010	100°开槽沉头螺钉Table3 Slotted 100 deg flat countersunk head screws (machine screws only)
21	[美标] ASME/ANSI B 18.6.3 - 2010	紧公差100°开槽沉头螺钉Table5 Close Tolerance 100 Degree Slotted Countersunk Head Screws
22	[美标] ASME/ANSI B 18.6.3 - 2010	80°开槽沉头清根螺钉Table9 80° Slotted undercut 82-deg flat countersunk head machine screws
23	[美标] ASME/ANSI B 18.6.2 - 1998 (R2010)	开槽沉头螺钉 [Table 1] (A307, SAE J429, F468, F593) Slotted Flat Countersunk Head Cap Screws [Table 1] (A307, SAE J429, F468, F593)
24	[美标] ASME/ANSI B 18.6.7M - 1998	米制开槽沉头螺钉Table2 Metric soltted countersunk screws
25	[美标] ASME/ANSI B 18.11 - 1961 (R1983)	开槽100°沉头小螺钉 [Table 3] Slotted 100°flat head miniature screws
26	[意大利] UNI 6109	开槽沉头螺钉 Slotted countersunk flat head screws
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28	[法国] NF F 03-004 (F) - 1983	铁路车辆沉头侧切口机械螺钉 Railway rolling stock Grade A Countersunk notched head machine
29	[法国] NF F 03-016 - 1983	铁路车辆开槽沉头螺钉/螺母 A级符号FP Railway rolling stock Grade A Slotted countersunk head screws nuts Symbol FP
30	[英标] BS 1981 - 1991	开槽沉头螺钉（短的）Table 6 Slotted Truncated Countersunk Head Screws: Short Length
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37	[台湾] CNS 4420 - 1981	开槽沉头螺栓 Slotted Countersunk Head Bolts
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44	[军标] GJB 3372 (/56) - 1998	100°沉头不脱出螺钉 Slotted 100 deg flat countersunk head screws, Waisted shank
45	[印标] IS 1365 - 2005	开槽沉头螺钉（通用头型） - 产品等级A级 Slotted Countersunk Flat Head Screws (common Head Style) - Product Grade A
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48	[美标] ASME B 18.6.3 (H1C) - 2024	100°沉头开槽机械螺钉 (ASTM F837/F468) [TABLE 2.2.1-3] Slotted 100-deg Flat Countersunk Head Screws (ASTM F837/F468) [TABLE 2.2.1-3]
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52	[美标] ASME B 18.6.3 (T5) - 2013	开槽精密100°沉头机械螺钉 [Table 5] (ASTM F837 / F468) Dimensions of Slotted Close Tolerance 100-deg Flat Countersunk Head Screws (Machine Screws Only) (ASTM F837 / F468)
53	[美标] ASME B 18.6.3 (T9) - 2013	开槽82°沉头清根机械螺钉 [ Table 9 ] (ASTM F837 / F468) Slotted Undercut 82-deg Flat Countersunk Head machine Screws (ASTM F837 / F468)
54	[航天] QJ 2370 - 1992	开槽沉头螺栓 Slotted countersunk head screws
55	[航天] QJ 2373 - 1992	开槽沉头螺钉 Slotted countersunk head screws
56	[航空] HB 7187~7195 - 1995	100°开槽沉头螺钉 100° Countersunk Head Bolts
57	[航空] HB 7208~7216 - 1995	100°开槽沉头螺钉 Slotted 100 deg flat countersunk head screws