檢視膨胀螺栓的原始碼

[[File:膨胀螺栓.jpg|缩略图|[https://image.baidu.com/search/detail?ct=503316480&z=0&ipn=d&word=%E8%86%A8%E8%83%80%E8%9E%BA%E6%A0%93%20%20%E6%90%9C%E7%8B%90&step_word=&hs=0&pn=3&spn=0&di=76010&pi=0&rn=1&tn=baiduimagedetail&is=0%2C0&istype=2&ie=utf-8&oe=utf-8&in=&cl=2&lm=-1&st=-1&cs=3686002331%2C4213385939&os=1497645633%2C631427040&simid=3686002331%2C4213385939&adpicid=0&lpn=0&ln=1236&fr=&fmq=1632536777187_R&fm=result&ic=&s=undefined&hd=&latest=&copyright=&se=&sme=&tab=0&width=&height=&face=undefined&ist=&jit=&cg=&bdtype=0&oriquery=&objurl=https%3A%2F%2Fgimg2.baidu.com%2Fimage_search%2Fsrc%3Dhttp%3A%2F%2F5b0988e595225.cdn.sohucs.com%2Fimages%2F20170917%2F709efca31f634b0ea37ebe536dd10333.jpeg%26refer%3Dhttp%3A%2F%2F5b0988e595225.cdn.sohucs.com%26app%3D2002%26size%3Df9999%2C10000%26q%3Da80%26n%3D0%26g%3D0n%26fmt%3Djpeg%3Fsec%3D1635129026%26t%3D9e60d80bd691a515fbfd851079b7665a&fromurl=ippr_z2C%24qAzdH3FAzdH3F4p_z%26e3Bf5i7_z%26e3Bv54AzdH3Fda80al8mAzdH3Fgc8ddbmm80_z%26e3Bfip4s&gsm=3&rpstart=0&rpnum=0&islist=&querylist=&nojc=undefined 原图链接][https://www.sohu.com/a/192512785_99927821 来自搜狐]]]
'''膨胀螺栓'''，是将管路支/吊/托架或设备固定在墙上、楼板上、柱上所用的一种特殊螺纹连接件。碳钢螺栓的等级分为3.6、4.6、4.8、5.6、6.8、8.8、9.8、10.9、12.9等10余个等级。
小数点前后的数字分别表示螺栓材料的公称抗拉强度和屈强比，例如：标记8.8级螺栓表示材料的抗拉强度达到800MPa,屈强比为0.8即其屈服强度达到800x0.8=640MPa。