Product Introduction

88彩票　　 Phillips pan head self-tapping locking screws have the characteristics of low screwing torque and high locking performance. At present, the standards and varieties of self-tapping locking screw fasteners in my country are GB/T6560 (cross recessed pan head), GB/T6561 (cross recessed countersunk head), GB/T6562 (cross recessed countersunk head), GB/ Five series including T6563 (hexagonal head) and GB/T6564 (hexagonal flower-shaped cylindrical head).

88彩票Product parameter

　　 Specification: M2-M10

　　 Length: 3-80mm

　　Material: carbon steel

　　 head type: Pan head

　　Thread type: self-tapping locking teeth

88彩票　　 slot type: cross slot

88彩票　　 Tensile strength: 450Mpa

88彩票　　Surface hardness: ≥450HV

　　Core hardness: 270-390HV

88彩票　　Surface treatment: environmentally friendly blue and white zinc