HEAD TYPE & RECESS TYPE
Screw type fasteners are manufactured with different head styles. Sometimes the style serves a functional purpose, and sometimes it's more decorative in nature. Understanding the differences will help you decide which style to choose.
Drive style—or drive recess as it is called—refers to the kind of tool you use to adapt it for engagement by a driver for turning the screw axially to force it or remove it from the workpiece. Of the many that exist, the most common are: Slotted, Phillips, Hex, Hex Socket, Square, Torx® and Pozi. Sometimes features are combined, as in the case of Phillips Slotted Combo, Pozi Slotted Combo, Phillips Square Combo designs.
THREAD TYPE & POINT TYPE
To effectively and properly use the fasteners, it is important to have the knowledge of screw threads and the point types. Screw threads serve three basic functions in mechanical systems: (1) to provide a clamping force, (2) to restrict or control motion, and (3) to transmit power. This continuous helical ridge formed on the outside (screw) of a cylinder with a specific helix angle is determined by fastener engineers.
A screw point is essential in a variety of forms and suitable for a range of applications. Useful for providing a transitional point between threads and points as well as ensuring proper hole alignment, selecting the correct screw points is important.
You can’t overstate the importance of reliable fasteners, and that’s why Multiform Fasteners Co., Ltd. routinely upgrades our product lines to make them stronger, easier to use, and more rust-resistant than ever.
Not only our patented items are the main source of growth, we also manufacture an extensive line of premium quality and CE-approved fasteners either for architecural objects or other industrial applications. We provide customized service and comprehensive consulting to meet customer‘s requirement.