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82°小半沉頭十字槽螺釘 (ASTM F837/F468) [TABLE 2.2.4-3,-4 I/IA] ASME B 18.6.3 (H4C) - 2024

選擇規格尺寸點擊↓

4# (3)

5# (4)

6# (4)

6# (5)

8# (5)

8# (6)

10# (8)

12# (8)

12# (10)

1/4 (10)

1/4 (12)

5/16 (12)

5/16 (5/16)

3/8 (3/8)

ASME B 18.6.3 (H4C) - 2024 82°小半沉頭十字槽螺釘 (ASTM F837/F468) [TABLE 2.2.4-3,-4 I/IA]

尺寸單位: inch

美标ASME B18.6.3 (H4C) - 2024 ASME18.6.3 1 82°小半沉頭十字槽螺釘 (ASTM F837/F468) [TABLE 2.2.4-3,-4 I/IA]

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單重計算公差美制螺紋極限尺寸米/英制螺紋對照螺紋直徑與受力截面積最小破壞扭矩牌号等級

螺紋尺寸
d

4#
(3)

5#
(4)

6#
(4)

6#
(5)

8#
(5)

8#
(6)

10#
(8)

12#
(8)

12#
(10)

1/4
(10)

1/4
(12)

5/16
(12)

5/16
(5/16)

3/8
(3/8)

d	公稱
PP
代号	頭部尺寸
d_s	最大值
	最小值
d_k	最大值
	最小值
k	參考值
f	參考值
R	參考值
L₁	最小值
α	最大值
	最小值
槽号
M₁	短螺釘	參考值
	長螺釘	參考值
M₂	短螺釘	參考值
	長螺釘	參考值
P	短螺釘, I型	最大值
		最小值
	長螺釘, I型	最大值
		最小值
	短螺釘, IA型	最大值
		最小值
	長螺釘, IA型	最大值
		最小值

0.1120	0.1250	0.1380	0.1380	0.1640	0.1640	0.1900	0.2160	0.2160	0.2500	0.2500	0.3125	0.3125	0.3750
40	40	32	32	32	32	24	24	24	20	20	18	18	16
3	4	4	5	5	6	8	8	10	10	12	12	5/16	3/8
0.112	0.125	0.138	0.138	0.164	0.164	0.190	0.216	0.216	0.250	0.250	0.312	0.312	0.375
0.106	0.119	0.131	0.131	0.157	0.157	0.181	0.207	0.207	0.240	0.240	0.302	0.302	0.364
0.187	0.212	0.212	0.237	0.237	0.262	0.312	0.312	0.362	0.362	0.412	0.412	0.477	0.597
0.167	0.191	0.191	0.215	0.215	0.238	0.285	0.285	0.333	0.333	0.380	0.380	0.442	0.556
0.057	0.066	0.058	0.075	0.060	0.076	0.094	0.078	0.111	0.091	0.124	0.087	0.130	0.173
0.033	0.037	0.037	0.041	0.041	0.045	0.076	0.076	0.060	0.060	0.068	0.068	0.079	0.099
0.014	0.017	0.017	0.019	0.019	0.021	0.025	0.025	0.029	0.029	0.033	0.033	0.038	0.048
0.062	0.062	0.062	0.062	0.062	0.062	0.062	0.062	0.062	0.062	0.062	0.062	0.062	0.062
82°	82°	82°	82°	82°	82°	82°	82°	82°	82°	82°	82°	82°	82°
80°	80°	80°	80°	80°	80°	80°	80°	80°	80°	80°	80°	80°	80°
1	1	1	2	2	2	2	2	2	2	3	3	3	4
0.118	0.130	0.130	0.152	0.152	0.172	0.186	0.186	0.202	0.202	0.264	0.264	0.284	0.384
0.118	0.130	0.130	0.162	0.162	0.188	0.200	0.200	0.214	0.214	0.264	0.264	0.264	0.384
0.118	0.130	0.130	0.152	0.152	0.172	0.186	0.186	0.202	0.202	0.264	0.264	0.284	0.384
0.118	0.130	0.130	0.162	0.162	0.188	0.200	0.200	0.214	0.214	0.264	0.264	0.284	0.384
0.074	0.087	0.087	0.074	0.074	0.094	0.108	0.108	0.126	0.126	0.135	0.135	0.156	0.218
0.057	0.070	0.070	0.050	0.050	0.069	0.084	0.084	0.102	0.102	0.111	0.111	0.131	0.194
0.074	0.087	0.087	0.085	0.085	0.110	0.124	0.124	0.137	0.137	0.135	0.135	0.156	0.218
0.057	0.070	0.070	0.061	0.061	0.085	0.099	0.099	0.112	0.112	0.111	0.111	0.131	0.194
0.074	0.086	0.086	0.074	0.074	0.093	0.108	0.108	0.125	0.125	0.135	0.135	0.155	0.215
0.058	0.070	0.070	0.056	0.056	0.075	0.090	0.090	0.107	0.107	0.117	0.117	0.137	0.197
0.074	0.086	0.086	0.084	0.084	0.109	0.122	0.122	0.136	0.136	0.135	0.135	0.155	0.215
0.058	0.070	0.070	0.066	0.066	0.091	0.104	0.104	0.118	0.118	0.117	0.117	0.137	0.197

①,頭部邊緣為倒圓或平的。
②,短機械螺釘（Short machine screws）指公稱長度小于等于1 1/8英寸（5号及以下尺寸），或2英寸（6号及以上尺寸）的螺釘。
③,機械螺釘的螺紋長度：

1）螺紋規格≤5#:

公稱長度≤3倍公稱直徑的應為滿扣產品，頭下螺紋肩距≤1倍螺距。公稱長度＞3倍公稱直徑到 1-1/8 in 的，允許頭下肩距最大不超過2倍螺距。若無其他規定，長螺釘的最小螺紋長度為1 in 。

2）螺紋規格≥6#:

公稱長度≤3倍公稱直徑的應為滿扣產品，頭下螺紋肩距≤1倍螺距。公稱長度＞3倍公稱直徑到 2 in 的，允許頭下螺紋肩距最大不超過2倍螺距。若無其他規定，長螺釘的最小螺紋長度為 1.5 in 。

替代列表

ASME B 18.6.3T15 - 2013 ASME B 18.6.3H4C - 2024

長度公差

　　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.

标稱螺釘尺寸的長度公差
标稱螺釘長度	螺紋規格
标稱螺釘長度	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

引用參考

GB /T 1172 - 1999

黑色金屬硬度及強度換算值

GB /T 5267.1 - 2002

鍍鋅、鍍鎳、鍍镉、複合鍍等層鍍層鹽霧腐蝕的防護性能

GB /T 193 - 2003

普通螺紋（一般用途米制螺紋）- 直徑與螺距系列 (ISO 261: 1998, MOD)

GB /T 3106 - 2016

緊固件 - 螺栓、螺釘和螺柱 - 公稱長度和螺紋長度 (ISO 888:2012, MOD)

GB /T 3 - 1997

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

GB /T 5779.1 - 2000

緊固件表面缺陷 - 螺栓、螺釘和螺柱 - 一般要求

GB /T 5779.3 - 2000

緊固件表面缺陷 - 螺栓、螺釘和螺柱 - 特殊要求

注：技術數據僅供參考，請以官方原件為準！

類似标準及供貨信息

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14	[日标] JIS B 1119 (2PC) - 1986	眼鏡框架用 - 十一字槽盤形半沉頭螺釘 Spectacle Frames - Cross-recessed Slotted Pan Countersunk Machine Screws
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