自攻自钻螺丝使用教程SAE 」78标准规定了一般用途碳钢自攻自钻螺丝钉的尺寸技术要求，也包括性能要求，标准的目的是要使符合规定机械性能要求的碳钢自攻自钻螺丝钉在装配中，能钻出孔并同时成形或切削出与自身相连接的螺纹，而螺钉自身螺纹不产生变形和脱扣。

In 29th, President Xi Jinping met with US President Trump in Osaka. The two heads of state exchanged in-depth views on the fundamental issues concerning the development of Sino-US relations, the current Sino-US economic and trade frictions, and international and regional issues of common concern, an

• 六角头自钻自攻螺钉 DIN EN ISO 15480 • 六角头木螺钉 Din 571 • 内六角紧定螺钉—凹端 Din 916 • 内六角紧定螺钉—截锥端 Din 914 • 弹簧垫圈 DIN 128 • 十字槽圆头螺钉 DIN 7996 • 牙条 DIN 975 • 开槽盘头螺钉 DIN 85-72 • 十字槽球面圆柱头螺钉 DIN 7985-86 • 内六角紧定螺钉—导向圆柱端 Din 915 • 内六角紧定螺钉—平端 Din 913 • 六角法兰面螺母 DIN EN 1661 • 1型六角螺母—产品等级A和B级 DIN EN ISO 4032 • 方螺母—产品等级C级 DIN 55

What is the difference between 304 and 316 stainless steel1. Different chemical compositionThe 304 is covered stainless steel, and its material composition is OCr18Ni9.The 316L is austenitic stainless steel, and the material composition is OOCr12Mo2Ti.2. Different performanceThe 304 steel can resist

Wood screw wood screw and self - tapping screw difference1.differences in definitions:Call wood screw, namely wood screw, it is similar with machine screw, but the thread on screw rod is special wood screw USES rib, can be screwed directly in woodiness component, the metal that is used for taking a

Flange nut definition We generally refer to the nut of the hexagonal flange face as the flange nut. The use of flange nuts is also very common. Generally, many flange bolts are required for the use of flange nuts. Moreover, if the flange nut is used, the fastening is very good.