Drywall Screw 1.Material:C1022 2.Length:15mm-150mm 3.Dia:3.5mm~4.8mm (#6~#10) 4.Surface treatment: Black/grey phosphate or zinc plated 5.Thread: Fine/coarse 6.Main Feature: With drilling point, bugle head, phillips drive, coarse/fine Thread 7.Package:according to customer’s request 8.Trade terms:FOB or CIF 9.Delivery time:with 30-45 days after receipt your advanced payment 10.Payment term: T/T 11.Port:Shanghai or Ningbo