Tangshan Shimai Imp & Exp Co., Ltd is based in China and lists a range of screws on Global Trade Plaza. The offering includes drywall screws to DIN 18182, chipboard screws to DIN 7505, self-tapping screws to DIN 7981-F, self-drilling screws and general self-tapping screws. All items are made from carbon steel C1022 and are supplied in tempered condition. Finishes cover phosphate in black or gray and galvanized in blue-white, white or yellow. Head and drive types include Phillips recess with bugle head, Pozi recess with countersunk head, and various pan, framing, truss and hexagon heads. Stated applications cover metal fixing up to 1.5 mm thickness and wood fixing up to 100 mm thickness.