Product Introduction

　　 Special-shaped groove anti-theft screws are divided into Y-shaped groove anti-theft screws, square groove anti-theft screws, triangular groove anti-theft screws and other unconventional structural groove screws. They are mainly used for railway construction, automobile equipment, road bridges and power facilities. The products produced by our company are of reliable quality and superior performance, and have received wide attention and praise from domestic and new customers.

Product parameter

　　 Specification: 2.2-14

　　 Length: 3-180mm

　　Material: carbon steel

　　Thread type: self-tapping

　　Groove: Special-shaped groove

　　 Tensile strength: 450Mpa

　　Surface hardness: ≥450HV

　　Core hardness: 270-390HV

　　Surface treatment: environmentally friendly blue and white zinc