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BSW/BSF 开槽盘头螺钉 - B.S.W. & B.S.F. 螺纹 [Table 5] BS 450 - 1958

选择规格尺寸点击↓

1/8

3/16

7/32

1/4

5/16

3/8

7/16

1/2

9/16

5/8

3/4

BS 450 - 1958 BSW/BSF 开槽盘头螺钉 - B.S.W. & B.S.F. 螺纹 [Table 5]

尺寸单位: inch

英标BS 450 - 1958 BS450 450BS BSW/BSF 开槽盘头螺钉 - B.S.W. & B.S.F. 螺纹 [Table 5]

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公差最小破坏扭矩牌号等级

螺纹尺寸
d

1/8

3/16

7/32

1/4

5/16

3/8

7/16

1/2

9/16

5/8

3/4

d
PP	牙数/英寸	B.S.W.
		B.S.F.
d_k	最大值
	最小值
k	最大值
	最小值
n	最大值
	最小值
t	公称
r	粗杆	最大值
R	细杆	最大值

0.1250	0.1875	0.2188	0.2500	0.3125	0.3750	0.4375	0.5000	0.5625	0.6250	0.7500
40	24	/	20	18	16	14	12	(12)	11	10
/	(32)	(28)	26	22	20	18	16	(16)	14	12
0.245	0.373	0.425	0.492	0.615	0.740	0.863	0.987	1.031	1.125	1.250
0.231	0.357	0.407	0.473	0.594	0.716	0.838	0.958	0.999	1.090	1.209
0.075	0.110	0.125	0.144	0.178	0.212	0.247	0.281	0.315	0.350	0.419
0.065	0.099	0.112	0.130	0.162	0.195	0.227	0.260	0.293	0.325	0.390
0.039	0.050	0.055	0.061	0.071	0.082	0.093	0.104	0.115	0.126	0.148
0.032	0.042	0.046	0.051	0.061	0.072	0.082	0.092	0.103	0.113	0.134
0.040	0.061	0.069	0.078	0.095	0.112	0.129	0.145	0.162	0.179	0.213
0.010	0.015	0.015	0.031	0.031	0.031	0.031	0.031	0.031	0.031	0.031
0.020	0.025	0.025	0.040	0.045	0.045	0.050	0.050	0.050	0.055	0.060

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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