Model Number: diameter from 3.5mm-5.5mm Brand Name: Qichuan Key Specifications/Special Features: Product: dry wall screwMaterials: steel/1022ASizes: M3.5 toM5.5 (diameter from 3.5-5.5mm, length from 6.5-120mm)Head: Hexgon, round, pan, countersunk, truss andovalDrive: Philips, pozi, square andtorx

Finish: phosphating, zinc, chrome, electrophoresis, dacromet andruspert

Salt mist of time: 24 to1000 hours

Colors: white, yellow, black, silver andcolorful

Usage: furniture, appliance, automobile, electronic industry, hardware andelectrical machinery, building, infrastructure andaviation