The screw is the use of the object's beveled circular rotation and friction of physics and mathematical principles, step by step
fastening tools.Drill screw is a screw with a self-tapping drilling head at the front of the screw.Screw is a common invention in
people's production and life for thousands of years. In terms of application field, it is the first great invention of human
beings.Drill screw is a new invention in recent years, also called self - drilling screw.Screw is the general term of fasteners, the
daily colloquial language.
uct Descriptionrodct DescriptionProduct Descriptio
major categories including Construction Fasteners,Machines Fasteners ,Furniture Fasteners,Security Fasteners , as well as
various kinds of tailor made non-standard fasteners and materials. we had supplied to our Chinese construction customers and
international market plenty of fasteners according to different standard such as IFI, DIN, ANSI, BS etc. Our products are now
widely used for many reputable companies in many industrial fields including field of aviation, petrochemical, shipbuilding,
home construction ,solar, automotive, railways, machinery, military, electricity, communication, etc. We have an energetic
powerful service team which is committed to provide the best solution to our customers.