Product Introduction

The inner plum blossom self-tapping locking screw is the triangular self-tapping screw of the quincunx socket. It has the characteristics of reduced tightening man-hours, strong locking performance and anti-loosening function. It is currently widely used in the automotive and motorcycle industries, especially In the automobile industry, self-tapping locking screws with hexagonal head, cross-recessed pan head, and hexagonal quincunx cylinder head with higher efficiency in fastening work are often used. Such screws are generally tightened with specific pneumatic or electric screwdrivers.

Product parameter

　　 Specification: M2-M10

　　 Length: 4-80mm

　　Material: carbon steel

　　 head type: Pan head

　　Thread type: self-tapping locking teeth

　　 slot type: quincunx

　　 Tensile strength: 450Mpa

　　Surface hardness: ≥450HV

　　Core hardness: 270-390HV

　　Surface treatment: environmentally friendly blue and white zinc