Guangzhou Chiku Screw Co.,Ltd., one of the leading manufacturer of flash-point self drilling screws in China, has recently launched a new kind of self drilling screw—the self drilling reamer screw which is mainly used for fitment and decoration.
Compared with the ordinary self drilling reamer screw, the new self drilling reamer screw can provide users with faster drilling speed and are more user-friendly.
Self drilling screws with “wings” on the shank are designed for the purpose of going through timber into metal. They have wings that ream out wood to prevent premature thread engagement into the timber prior to the drill point drilling through the metal. The wings can snap off when they hit metal.