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開槽沉頭螺釘（短的）Table 6 BS 1981 - 1991

選擇規格尺寸點擊↓

(1#)

(3#)

10#

(12#)

1/4

5/16

3/8

7/16

1/2

5/8

3/4

括号内尺寸為非優選

尺寸單位: inch

英标BS 1981 - 1991 BS1981 1981BS 開槽沉頭螺釘（短的）Table 6

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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

(1#)

(3#)

10#

d_k	最大值
	最小值
k	最大值
	最小值
n	最大值
	最小值
t	最大值
	最小值

0.119	0.146	0.172	0.199	0.225	0.252	0.279	0.332	0.385
0.099	0.123	0.147	0.171	0.195	0.22	0.244	0.292	0.34
0.025	0.031	0.036	0.042	0.047	0.053	0.059	0.07	0.081
0.018	0.023	0.028	0.033	0.038	0.043	0.048	0.058	0.068
0.023	0.026	0.031	0.035	0.039	0.043	0.048	0.054	0.06
0.016	0.019	0..023	0.027	0.031	0.035	0.039	0.045	0.05
0.011	0.014	0.016	0.019	0.022	0.024	0.027	0.032	0.037
0.007	0.009	0.011	0.012	0.014	0.016	0.017	0.021	0.024

螺紋尺寸
d

(12#)

1/4

5/16

3/8

7/16

1/2

5/8

3/4

d_k	最大值
	最小值
k	最大值
	最小值
n	最大值
	最小值
t	最大值
	最小值

0.438	0.507	0.635	0.762	0.812	0.875	1.125	1.375
0.389	0.452	0.568	0.685	0.723	0.775	1.002	1.23
0.092	0.107	0.134	0.161	0.156	0.156	0.208	0.26
0.078	0.092	0.116	0.14	0.133	0.13	0.176	0.223
0.067	0.075	0.084	0.094	0.094	0.106	0.133	0.149
0.056	0.064	0.072	0.081	0.081	0.091	0.116	0.131
0.043	0.05	0.062	0.075	0.072	0.072	0.096	0.12
0.028	0.032	0.041	0.049	0.045	0.046	0.062	0.078

①,a(max)=1.5倍螺距

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！

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18	[日标] JIS B 1179 (T1-2) - 1994	開槽沉頭螺栓 (粗制）[Table 1-2] Slotted Flat Head Bolts, Rough Finished [Table 1-2]
19	[美标] ASME/ANSI B 18.6.3 - 2010	80°開槽沉頭螺釘Table1 80° Slotted flat countersunk head machine screws
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24	[美标] ASME/ANSI B 18.6.7M - 1998	米制開槽沉頭螺釘Table2 Metric soltted countersunk screws
25	[美标] ASME/ANSI B 18.11 - 1961 (R1983)	開槽100°沉頭小螺釘 [Table 3] Slotted 100°flat head miniature screws
26	[意大利] UNI 6109	開槽沉頭螺釘 Slotted countersunk flat head screws
27	[法國] NF E 25-123 - 1994	開槽沉頭螺釘 Slotted Countersunk Flat Head Screws - Product Grade A
28	[法國] NF F 03-004 (F) - 1983	鐵路車輛沉頭側切口機械螺釘 Railway rolling stock Grade A Countersunk notched head machine
29	[法國] NF F 03-016 - 1983	鐵路車輛開槽沉頭螺釘/螺母 A級符号FP Railway rolling stock Grade A Slotted countersunk head screws nuts Symbol FP
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33	[澳标] AS /NZS 1427 - 1996	米制開槽沉頭螺釘 [Table 1] ISO metric slotted countersunk head screws [Table 1]
34	[台灣] CNS 9678 - 1982	精密機械用開槽沉頭螺釘 Slotted Countersunk Screws For Fine Mechanics
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36	[台灣] CNS 4420 - 1981	開槽沉頭螺栓 Slotted Countersunk Head Bolts
37	[台灣] CNS 4363 - 1980	精密用開槽沉頭螺釘 M0.4～M1.4 Slotted Countersunk Head Screws For Fine Mechanics
38	[俄标] GOST 17475 - 1980	開槽沉頭螺釘 A級和B級 Countersunk head screws of accuracy classes A and B（Slotted）
39	[韓标] KS B 1021 (T5) - 2012 (R2022)	開槽沉頭螺釘【Table 5】 Slotted Countersunk Flat Head Screws【Table 5】
40	[德标] DIN EN ISO 2009 - 2011	開槽沉頭螺釘(通用頭型) A級 Slotted Countersunk Flat Head Screws(Common Head Style)-Product Grade A 供應商(3)
41	[軍标] GJB 3371 (/61) - 1998	光杆公差帶f9 100°沉頭螺栓 100° Countersunk Head Bolts，Shank Tolerance f9
42	[軍标] GJB 3372 (/36~/44) - 1998	100°開槽沉頭螺釘 Slotted 100 deg flat countersunk head screws
43	[軍标] GJB 3372 (/56) - 1998	100°沉頭不脫出螺釘 Slotted 100 deg flat countersunk head screws, Waisted shank
44	[印标] IS 1365 - 2005	開槽沉頭螺釘（通用頭型） - 產品等級A級 Slotted Countersunk Flat Head Screws (common Head Style) - Product Grade A
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47	[美标] ASME B 18.6.3 (H1C) - 2024	100°沉頭開槽機械螺釘 (ASTM F837/F468) [TABLE 2.2.1-3] Slotted 100-deg Flat Countersunk Head Screws (ASTM F837/F468) [TABLE 2.2.1-3]
48	[美标] ASME B 18.6.3 (H1E) - 2024	精密100°沉頭開槽機械螺釘 (ASTM F837/F468) [TABLE 2.2.1-5] Slotted Close Tolerance 100-deg Flat Countersunk Head Screws (ASTM F837/F468) [TABLE 2.2.1-5]
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53	[美标] ASME B 18.6.3 (T9) - 2013	開槽82°沉頭清根機械螺釘 [ Table 9 ] (ASTM F837 / F468) Slotted Undercut 82-deg Flat Countersunk Head machine Screws (ASTM F837 / F468)
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55	[航天] QJ 2373 - 1992	開槽沉頭螺釘 Slotted countersunk head screws
56	[航空] HB 7187~7195 - 1995	100°開槽沉頭螺釘 100° Countersunk Head Bolts
57	[航空] HB 7208~7216 - 1995	100°開槽沉頭螺釘 Slotted 100 deg flat countersunk head screws