Product name: Conctete screw, window frame screw
Specification: 7.5x42 ----7.5x212
Packing: In cartons or bulk,
Head: Torx head T30
Thread: Full thread,
Surface: Yellow zinc plated,
Material: Carbon steel, C1022
Original place: China
Payment: FOB Shanghai
Characteristics: Concrete screw( window frame screw)is used for building and we can provide our customers with different kinds and lengths concrete screw.