Product Name: Hexalobular Head Countersunk Chipboard Screws Model NO.: chipboard screws Surface Finishing: Zinc Plated Shape of Head: Round Material: Stainless Steel Transport Package: Box, Carton, Pallet Specification: DIN,ANSI,BSW,JIS,GB,AU,ISO Origin: China HS Code: 73181400 Product Description Hexalobular Head Countersunk Chipboard ScrewsHead: Pan / cskDia of Thread: 2.2~6.3mmLength: 6mm~150mmMaterial: Stainless steel, Carbon steel, Brass ectStandard: DIN, ASIN, BS, JIS, ISO, AU ectSelf-tapping is the ability of a screw to advance when turned, while creating its own thread. This ability is sometimes created by a gap in the continuity of the thread on the screw. These edges cut a thread as the screw is driven in to the material. The cutting edge drills away the material, leaving a hole for the screw to go into.Self-tapping screws are used in a variety of applications ranging from DIY to surgery. A dental implant is an example of a self tapping screw used in surgery.Shanghai NUTE import & EXPORT Co., Ltd. Offer products made of stainless steel material for the 302, 304, 316 and materials such as carbon steel 1008, 1010, 1022, 1035, 1045 bolts, screws, nuts, washers, thread rods and so on.Products can be GB (GB), DIN (German standard), ISO (international standard), ANSI (American Standard), AS (Australian Standard), BS (British standard), JIS (Japan standard) its size range are: Diameter (5 cm -70 cm) in length (10 mm -2000 mm), also in accordance with customer drawings production of non-standard parts.