, , 700 碳索结构钢GB 196 普通螺纹基本尺寸GB 197 普通螺纹公差与配合GB 2 紧固件外螺统主事件的末端GB 3098.1 紧固件机械性能螺栓、螺钉和螺桂GB 2828逐批检查计数抽样程序及抽样表3 型式尺寸螺旋道钉的型式尺寸应符合本标准的规寇。4 技术要求4.1 螺旋道钉的材料为
螺纹道钉Tag内容描述：
1、 700 碳索结构钢GB 196 普通螺纹基本尺寸GB 197 普通螺纹公差与配合GB 2 紧固件外螺统主事件的末端GB 3098.1 紧固件机械性能螺栓、螺钉和螺桂GB 2828逐批检查计数抽样程序及抽样表3 型式尺寸螺旋道钉的型式尺寸应符合本标准的规寇。
4 技术要求4.1 螺旋道钉的材料为Q235-A钢，技术要求应符合GB700的规定。
4.2 螺旋道钉上部螺纹为M24，基本尺寸应符合GB196的规定，螺纹公差按GB197中规定的阳制造。
24.0 4.3 螺旋道钉下部辉、纹为特M25.6X6-d一一-螺纹，牙高为3.2S-L25mm。
25.6 4.4 螺旋道钉末端按GB2的规定制造。
4.5 螺旋道钉表面质量:4.5.1 螺旋道钉圆台表面的锻造爆裂裂缝不允许延伸到杆身。
4.5.2 螺旋道钉上部螺纹不允许有妨碍螺纹量规自由旋入的碰伤和毛刺，不允许有影响使用的双牙尖、划痕和丝扣不元整。
4.5.3 螺旋过钉下部螺纹应牙形整齐，丝扣完整，不允许有劈裂痕迹。
4.5.3 螺旋道钉表面不允许有影响使用的fj良、毛刺、飞边、烧伤和氧化应。
中华人民共和国铁道部1992-08-21批准1992-12。
2、ordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRANET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any damage whatsoever than may result from the use of this material or the information contain therein,。
3、 the year of originaladoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscriptepsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope1.1 This specification covers steel screw spikes used asfastenings between railroad rails, tie plates, and ties.1.2 The values stated in inch-pound units are to be 。
