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易緊通

塑料用六角頭凸緣(華司)自攻釘 QC /T 876 - 2011

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選擇規(guī)格尺寸 點擊↓

NST 3

NST 3.5

NST 4

NST 5

NST 5.5

NST 6


尺寸單位: mm
QC /T 876 - 2011 塑料用六角頭凸緣(華司)自攻釘
掃一掃分享
螺紋規(guī)格
d
NST 3 NST 3.5 NST 4 NST 5 NST 5.5 NST 6
dc 最大值
最小值
h 最小值
s 最大值=公稱
最小值
k 最大值=公稱
最小值
y 參考 C型
F型
6.3 8.3 8.3 10.5 11 13.5
5.8 7.6 7.6 9.8 10 12.2
0.4 0.6 0.6 0.9 1 1
4 5.5 5.5 8 8 10
3.86 5.32 5.32 7.78 7.78 9.78
2.8 3.4 3.4 4.3 5.4 5.9
2.5 3 3 3.8 4.8 5.3
2.3 2.6 3 3.7 4.3 4.8
1.9 2.4 2.6 3.6 3.9 4

采用標(biāo)準(zhǔn) (1)

技術(shù)條件和引用標(biāo)準(zhǔn)

螺紋
機(jī)械性能 材料
表面
芯部
滲碳層深度
顯微組織
公差 產(chǎn)品等級
標(biāo)準(zhǔn)
表面處理 種類
標(biāo)準(zhǔn)
表面缺陷
驗收及包裝
QC/T 713
冷鐓鋼、滲碳鋼
≥ 450 HV0.3
試驗方法按CB/T 3098.5 的規(guī)定。
螺紋規(guī)格 ≤ NST3.5: 270 HV5~390 HV5;螺紋規(guī)格 ≥ NST4: 270 HV10~390 HV10。
試驗方法按GB/T 3098.5 的規(guī)定。
螺紋規(guī)格 ≤ NST3.5: 0.05mm ~0.18mm; NST4 ≤ 螺紋規(guī)格 ≤ NST5.5: 0.10mm~ 0.23mm;
螺紋規(guī)格 = NST6: 0.15mm~0.28rnm。
試驗方法按CB/T 3098.5 的規(guī)定,但NST3和NST3.5的自攻螺釘應(yīng)在牙底上進(jìn)行試驗。
在滲碳層與芯部間的顯微組織不應(yīng)呈現(xiàn)帶狀亞共析鐵素體。
試驗方法按CB/T 3098.5 的規(guī)定。
A級
GB/T 3103.1
鍍鋅鈍化 Fe/Zn8
QC/T 625
螺紋表面不允許有裂縫、折疊;
螺釘表面不允許有影響使用的裂縫、爆裂、條痕、凹痕、損傷
GB/T 90.1、GB/T 90.2
注:技術(shù)數(shù)據(jù)僅供參考,請以官方原件為準(zhǔn)!

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標(biāo)準(zhǔn)編號 / Standard Code: QC /T 876 - 2011
中文名稱 / Chinese Name: 塑料用六角頭凸緣(華司)自攻釘
英文名稱 / English Name: Hexagon Collar Head Tapping Screws for Plastic
數(shù)據(jù)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: QC /T 876 - 2011
Chinese Name: 塑料用六角頭凸緣(華司)自攻釘
English Name: Hexagon Collar Head Tapping Screws for Plastic
Chinese URL: Chinese Source Page
English URL: English Source Page
License: Commercial reuse, redistribution, or AI training usage requires authorization.
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