88彩票Product Introduction

88彩票Phillips flat head tapping screw is a relatively common cross recessed self-tapping screw with a flat head. Its specifications are generally in the range of 2.2-14, and the diameter of the head is larger than that of the same specification. The head diameter of the round head tapping screw is larger.

Product parameter

　　 Specification: 2.2-14

　　 Length: 3-180mm

88彩票　　 Material: Alloy steel

88彩票　　 head type: big flat head

　　Thread type: self-tapping

　　 slot type: cross slot

　　 Tensile strength: 1040-1220Mpa

88彩票　　Rockwell hardness: ≥32-39HRB

　　Surface treatment: Dacromet