selfboring
Selfboring is a term used to describe drilling and fastening methods in which the tool or fastener creates the hole it needs without requiring a pre-drilled pilot hole. The concept is applied to fasteners such as self-boring screws and self-boring anchors, as well as to drilling tools described as self-boring bits. In construction and manufacturing, selfboring fasteners enable one-step installation into metal, wood, or composites, while self-boring bits can perform drilling and core sampling in some designs.
A self-boring screw or anchor typically has a cutting tip that drills its own pilot bore while
Selfboring fasteners and tools became common in the 20th century with advances in tool steel, coatings, and
Applications include roofing and siding installations, metal building assemblies, electrical enclosures, and hybrid timber-metal structures. Benefits
See also: self-drilling screw, self-tapping screw, drilling bit, fastener, threaded insert.