Industry Manual
-
Fastener Basics – Screw classification
According to the structure screw can be divided into following seven types, including slotted screw, cross groove screw, hexagon socket and hexagon pattern sc...Read more -
Fastener Basics – Screws Definition
Screw is a tool to tighten the parts step by step by using the physical and mathematical principles of circular rotation of the inclined plane and friction force. The function of the screw is mainly to connect the two workpieces together, play the role of fastening, is a...Read more -
Fastener Knowledge – Stud
A stud, also known as a double ended bolt, Threaded rod, has a length of thread at both ends without head. One end of the stud must be screwed into the part with an internal threaded hole, the other end through the part with a through hole, and then screw on the nut to f...Read more -
Specification of stainless steel groups and performance grades for fasteners（ISO 3506-12020）
Read more -
Stainless steel groups and chemical composition（ISO 3506-12020）
Chemical composition (cast analysisi, mass fraction in %) C Si Mn P S Cr A1 Austenitic A2 A3 A4 A5 A8 C1 Martensitic C3 C4 F1 Ferritic D2 Austenitic-Ferritic D4 D6 D8 0.12 1.00 6.5 0.020 0.15~0.35 16.0~19.0 0.10 1.00 2.00 0.050 0.030 15.0~20....Read more -
Knowledge Of Fasteners — Bolts
Bolt is a type of fastener consisting of a head and a screw (a cylinder with external threads). A bolt must fit with a nut to securely connect two parts with through-holes The connection form connected by the bolt and nut is called bolt connection. If the nut is unscrewed from the bolt, the two p...Read more