CHIPBOARD SCREWS Raw material : Carbon steel 1022 Head type: Countersunk head or Flat head, Pan head., Oval head Driver: Phillips , Pozi , square, torx recess Thread : Coarse thread, Fine thread. With rib or without rib Diameter: 2.5 - 6.0mm Length: 10 - 200mm Finish : Hardened, Z.P. ,Waxed DRY WALL SCREWS: Case hardened, Piercing Point Screws For Fixing To Light Steel or Wood Studs Without Pre-Drilling Zinc, Yellow Zinc, Black & Grey Phosphated Available Raw material : Carbon steel 1022 Head type: Bugle head Driver: Phillips Thread : Fine Thread ,Coarse thread, Twinfast thread Diameter: 3.5-- 4.8mm Length: 11 - 152mm Finish : Hardened, Yellow Zinc, Black & Grey Phosphated Availabl WOOD SCREWS Raw material : Carbon steel 1022 Standards : BS Head type: Flat head ,Countersunk Driver: Pozi Thread : Twinfast Thread Diameter:4#--12# Length: 1/2--4 Finish : Hardened, Zinc Packing : in small box or bulk packaging, according to your requests Minimum order: one Container Payment : T/T or L/C Price Terms: FOB OR CIF delievey time:30-40days