New German sign Old German sign English name Chinese name GB code DIN EN ISO 4014 DIN 931-1 Hexagon head bolts - Product grades A and B (ISO 4014:1999) Hexagonal head tap bolt GB/T 5782-2000 DIN EN ISO 4016 …

Overseas commonly used inch thread code number, name and standard numberMark code number name (or use) nationality and standard number noteB.S.W. The standard Hui coarse thread series, the general-utility straight thread Britain standard BS84 tooth angle is 55°…

NO JI LOCK SCREWSEnvironmental protection vibration-proof screw Size Provides M the 0.5~M 3.0 specifications Merit 1) The patent design, exempts the traditional against loose method, if a rubber or the Chine…

The first chapter measure 　　Now in the world the length Measuring unit mainly has two kinds, one kind is the metric system, the Measuring unit for the rice (m), the centimeter (cm), the millimeter (mm) and so on, in Southeast Asia uses and so on Europe, our…

The first chapter measure　 (1) fastener's complete markFastener's complete mark form is as follows: In mark each expression contents note: 1- fastener names; 2- fastener standard serial numbers; 3- fastener patterns; 4- fastener specifications, preci…

The overwhelming majority fastener material is the steel products, takes one in the fastener profession work personnel, it is necessary to understand change, the discrimination and the application, if is the technical personnel, should have a more profound unde…

　The fastener is makes kind of machine parts which the fastening connection uses, the application is extremely widespread. Fastener's characteristic:: The variety specification is many, the performance use varies, moreover standardized, serialized, the univers…