Product Introduction

The large flat head composite groove stainless steel screw refers to the large flat head type, the stainless iron screw with the composite groove structure. It uses a kind of hardenable 410 stainless iron material. The typical grade is Cr13, such as 2Cr13, 3Cr13, 4Cr13, etc. Its hardness after quenching is relatively high, and different tempering temperatures have different strength and toughness combinations. It is mainly used for steam turbine blades, tableware, surgical instruments, etc.

Product parameter

　　 Specification: 2.2-14

　　 Length: 3-180mm

　　 Material: 410 stainless iron

　　 head type: big flat head

　　Thread type: self-tapping

　　Groove type: Composite groove

　　 Tensile strength: ≥500Mpa

　　Rockwell hardness: 155-220HV

　　 Brinell hardness: 147-209HB

　　Surface treatment: true color