Thread and point details for types D and T thread cutting screws (unified form threads) [TABLE 7]
BS 4174 - 1972
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![英标BS 4174 - 1972 BS4174 4174BS Thread and point details for types D and T thread cutting screws (unified form threads) [TABLE 7]](http://img.globalfastener.com/upload/48/standard/2020/07/27/1595832389388786920.jpg)
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BS 4174 - 1972
Display drawing:
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![Thread and point details for Type AB and B thread forming screws and Type BT thread cutting screws [TABLE 5]](http://img.globalfastener.com/upload/48/standard/2020/07/27/1595832332564320393.jpg)
