Matches 1 - 5 out of 5


Match Document Document Title
US20080206560 PHOSPAHTE COATED STAINLESS STEEL WIRE FOR COLD HEADING AND SELF-DRILLING SCREW USING THE STAINLESS STEEL WIRE  
Provided are a phosphate coated stainless steel wire for cold heading and a self-drilling screw using the stainless steel wire. Since a phosphate coating is formed on a surface of the stainless...
US20090214321 SELF-DRILLING SCREW AND METHOD OF MAKING THE SAME  
A self-drilling screw includes a head portion, a shank portion having an externally threaded section, and a drilling portion opposite to the head portion. The drilling portion has a main section...
US20080080951 Screw with a drilling tail  
A screw with a drilling tail comprises: a screw head, a drilling tail, a rod portion between the screw head and the drilling tail, and at least one first threads on the rod portion, wherein the...
US20160003282 Method for Producing a Concrete Screw  
A method for producing a concrete screw is disclosed. The method includes providing a wire piece as a workpiece, forming a thread helix on a lateral surface of the workpiece, and providing a...
US20150322989 CRACK-PROOF SCREW  
A crack-proof screw comprises a head; a rod having a first end extending from the head and having a rod thread near the head and expanding threads far away from the head; each expanding thread...
Matches 1 - 5 out of 5