Drywall Screw Material:C1022 Firstly, according to the proportion of screw determine the raw
materials used in diameter - custom mold - mechanical testing - -
first hit the nail prototype - for thread rolling equipment, rub
out the thread - mesh belt furnace quenching (oil) - - phosphating
plant black phosphorus (Galvanized) - returned to the warehouse Main Feature:with drilling point, bugle head, phillips drive,
coarse/fine Thread Finished:phosphated(black,grey), galvanized(bule,white,color),black
oxide Package: 1000pcs/box, 16/20boxes/carton, or as customers' special
request. Useage: drywall screw do much less damage to wood and are easier to remove
and even be reused. More and more widely used in wood,instead of
wood screw,metal,all kinds of board...
Black Phosphated Drywall Screw Grey Phosphated Drywall Screw Color Zinc Coated Drywall Screw Blue Zinc Coated Drywall Screw |