... High Quality & Competitive Price Prompt Delivery Double Countersunk Flat Head Chip Board Screw 1.Usage: Industrial construction, ... Galvanized3.Shrank: Smooth, Grooved, Spiral, Angular, Twist4.Features: Flat caps, Round Bar, Diamond Point, Bright Surface, Strong Rust ... Head Variety: Common Head, Countersunk Head, Lose Head, Flat Countersunk Chequerred Head6.Finish: Polished, Electric Galvanized or ...