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統一螺紋內六角圓柱頭螺釘 Table 2A BS 2470 - 1973

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選擇規格尺寸點擊↓

10#

1/4

5/16

3/8

7/16

1/2

5/8

3/4

7/8

尺寸單位: 英寸(inch)

英標BS 2470 - 1973 BS2470 2470BS 統一螺紋內六角圓柱頭螺釘 Table 2A

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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號等級

螺紋規格
d

10#

d_s	最大值
d_s	最小值
d_k	最大值
d_k	最小值
k	最大值
k	最小值
s	公稱
t	最小值
b	最小值

0.0600	0.0730	0.0860	0.0990	0.1120	0.1250	0.1380	0.1640	0.1900
0.0568	0.0695	0.0822	0.0949	0.1075	0.1202	0.1329	0.1585	0.1840
0.096	0.118	0.140	0.161	0.183	0.205	0.226	0.270	0.312
0.091	0.112	0.134	0.154	0.176	0.198	0.218	0.262	0.303
0.060	0.073	0.086	0.099	0.112	0.125	0.138	0.164	0.190
0.057	0.070	0.083	0.095	0.108	0.121	0.134	0.159	0.185
0.050	0.050	1/16	5/64	5/64	3/32	3/32	1/8	5/32
0.025	0.031	0.038	0.044	0.051	0.057	0.064	0.077	0.090
0.500	0.625	0.625	0.625	0.750	0.750	0.750	0.875	0.875

螺紋規格
d

1/4

5/16

3/8

7/16

1/2

5/8

3/4

7/8

d_s	最大值
d_s	最小值
d_k	最大值
d_k	最小值
k	最大值
k	最小值
s	公稱
t	最小值
b	最小值

0.2500	0.3125	0.3750	0.4375	0.5000	0.6250	0.7500	0.8750	1.0000
0.2435	0.3053	0.3678	0.4294	0.4919	0.6163	0.7406	0.8647	0.9886
0.375	0.437	0.562	0.625	0.750	0.875	1.000	1.125	1.312
0.365	0.425	0.550	0.611	0.735	0.858	0.982	1.105	1.291
0.250	0.312	0.375	0.437	0.500	0.625	0.750	0.875	1.000
0.244	0.306	0.368	0.430	0.492	0.616	0.740	0.864	0.988
3/16	7/32	5/16	5/16	3/8	1/2	9/16	9/16	5/8
0.120	0.151	0.182	0.213	0.245	0.307	0.370	0.432	0.495
1.000	1.125	1.250	1.375	1.500	1.750	2.000	2.250	2.500

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BA螺紋內六角平端緊定螺釘 Table 6C

BS 2470 - 1973

BA螺紋內六角球面端緊定螺釘 Table 6C

BS 2470 - 1973

BA螺紋內六角圓柱端緊定螺釘 Table 6C

BS 2470 - 1973

BA螺紋內六角圓柱頭螺釘 Table 2C

BS 2470 - 1973

BA螺紋內六角錐端緊定螺釘 Table 6C

BS 2470 - 1973

六角匙 Table 8

BS 2470 - 1973

統一或英制螺紋內六角圓柱頭軸肩螺釘 Table 5

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統一螺紋內六角凹端緊定螺釘 Table 6A

BS 2470 - 1973

統一螺紋內六角沉頭螺釘 Table 3

BS 2470 - 1973

統一螺紋內六角平端緊定螺釘 Table 6A

BS 2470 - 1973

統一螺紋內六角球面端緊定螺釘 Table 6A

BS 2470 - 1973

統一螺紋內六角圓頭螺釘 Table 4

BS 2470 - 1973

統一螺紋內六角圓柱端緊定螺釘 Table 6A

BS 2470 - 1973

統一螺紋內六角圓柱頭螺釘 Table 2A

BS 2470 - 1973

統一螺紋內六角錐端緊定螺釘 Table 6A

BS 2470 - 1973

英制螺紋內六角凹端緊定螺釘 Table 6B

BS 2470 - 1973

英制螺紋內六角平端緊定螺釘 Table 6B

BS 2470 - 1973

英制內六角球面端緊定螺釘 Table 6B

BS 2470 - 1973

英制螺紋內六角圓柱端緊定螺釘 Table 6B

引用參考 (14)

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 3098.25 - 2020

緊固件機械性能不銹鋼和鎳合金緊固件選用指南

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 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)

鍍鋅、鍍鎳、鍍鎘、復合鍍等層鍍層鹽霧腐蝕的防護性能

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

螺栓、螺釘和螺柱性能等級及常用牌號及近似牌號（按GB/T3098.1-2010相關規定選擇）非合金鋼和低合金鋼和鑄鋼的硬度值轉換表

注：技術數據僅供參考，請以官方原件為準！

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標準編號 / Standard Code： BS 2470 - 1973
中文名稱 / Chinese Name： 統一螺紋內六角圓柱頭螺釘 Table 2A
英文名稱 / English Name： Hexagon Socket Cheese Head Screws - Unified Thread
數據來源 / Data Source： 易緊通 YJT Fastener Database（164580.com）
中文頁面 / Chinese Page： 查看中文頁面
English Page： View English Page

Data Source: YJT Fastener Database (164580.com)
Standard: BS 2470 - 1973
Chinese Name: 統一螺紋內六角圓柱頭螺釘 Table 2A
English Name: Hexagon Socket Cheese Head Screws - Unified Thread
Chinese URL: Chinese Source Page
English URL: English Source Page
License: Commercial reuse, redistribution, or AI training usage requires authorization.

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