[COMPANY INTRODUCTION]
Shinheung Fastener offers the high quality in fastening technology.
A commitment to escellence, customized engineering and process-oriented consulting are
the hallmarks of our products and services.
Our products are about helping you to choose the right fastener for the right application.
Also we can support your new product design with our technical expertise.
We always strive for accurate delivery and the best quality.
Customers and trust are the top priority.
The screw, long considered one of the world’s simple machines, is a solid cylinder wrapped with a helical plane.
To form a mechanical joint with a screw, the helical plane, referred to as the screw thread, rotates through a hole in the materials following or creating mating threads.
Screws are available in many sizes with different head and drive styles and thread pitches which vary depending on the material, method of installation and desired end result.
Screws having the ability to create mating threads as they are installed are referred to as self-tapping or self-drilling screws.
Self-tapping screws typically have threads down to the end or point of the screw and often require a pilot hole. As they are installed, the self-tapping screw creates mating threads in the material.
Self-drilling screws on the other hand, do not require pre-drilled pilot holes as the tips are formed to drill the hole as they are installed.
The drilling tip is slightly smaller than the threads enabling the screw threads to form mating threads in the material.
Screw assemblies, referred to as SEMS, have a free-spinning washer or washers permanently attached under the screw head.
SEMS screw save time during assembly and afford the same benefits as non-attached washers such as distributing load, acting as a spacer, reducing vibration and acting as a protective barrier.