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内六角花形半沉头自攻螺钉 GB /T 2670.3 - 2017

选择规格尺寸点击↓

ST2.9

ST3.5

ST4.2

ST4.8

ST5.5

ST6.3

尺寸单位: mm

国标GB /T2670.3 - 2017 GB2670.3 2670.3GB 内六角花形半沉头自攻螺钉

模型下载

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单重计算公差

螺纹规格

ST2.9

ST3.5

ST4.2

ST4.8

ST5.5

ST6.3

P	螺距
a
d_k	理论值	最大值
	实际值	最大值
		最小值
f	≈
k	最大值
r	最大值
R₁	≈
y	参考值	C型
		F型
		R型
槽号
A	参考值
t	最大值
	最小值

1.1	1.3	1.4	1.6	1.8	1.8
1.1	1.3	1.4	1.6	1.8	1.8
6.3	8.2	9.4	10.4	11.5	12.6
5.5	7.3	8.4	9.3	10.3	11.3
5.2	6.9	8.0	8.9	9.9	10.9
0.7	0.8	1	1.2	1.3	1.4
1.7	2.35	2.6	2.8	3	3.15
1.2	1.4	1.6	2	2.2	2.4
6.0	8.5	9.5	9.5	11.0	12.0
2.6	3.2	3.7	4.3	5.0	6.0
2.1	2.5	2.8	3.2	3.6	3.6
/	2.7	3.2	3.6	4.3	5.0
10	15	20	25	25	30
2.8	3.35	3.95	4.5	4.5	5.6
1.27	1.4	1.8	2.03	2.03	2.42
1.01	1.14	1.42	1.65	1.65	2.02

替代列表

GB /T 2670.3 - 2004 GB /T 2670.3 - 2017

等效标准

国标 GB	国际 ISO	德标 DIN
GB /T 2670.3	ISO 14587	DIN EN ISO 14587

以上有部分标准可能为近似等效，如有异议以标准原件为准

采用标准

ISO 14587 - 2011

梅花槽半沉头自攻螺钉

工艺相关

GB /T 90.1 - 2002

紧固件验收检查（ISO 3269:2000 IDT）

紧固件螺栓、螺钉、螺柱及螺母尺寸代号和标注

技术条件和引用标准

材料

钢

通用技术条件
螺纹
机械性能
公差	产品等级
	标准
内六角花型
表面处理
验收及包装

GB/T 16938

GB/T 5280

GB/T 3098. 5

GB/T 3103.1

GB/T 6188

不经处理;
电镀技术要求按GB/T 5267. 1;
非电解锌片涂层技术要求按GB/T 5267. 2;
如需其他技术要求或表面处理，应由供需协议

GB/T 90.1 、GB/T 90. 2

引用参考

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 5280 - 2002

自攻螺钉用螺纹

注：技术数据仅供参考，请以官方原件为准！

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材质：1008钢、1018#碳钢、Q235碳钢、35#合金钢、304HC不锈钢、316HC不锈钢，表面处理：环保彩锌、环保蓝白锌、环保黑锌、环保镍、热镀锌、达克罗、以及非环保电镀，规格：齐全

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