雙頭牙螺栓/螺絲


Material: Stainless Steel

Diameter: M6-M36 (1/4” ~1-3/8”)

Length: 40mm-300mm (2”~12”)

DIN 88149





Dowel Screw Headless fasteners threaded on both ends, dowel screws join two pieces of wood while remaining concealed. These fasteners are commonly used in making furniture.

Dowel screws are lag threaded dowels (studs) used to fasten two pieces of wood. Like typical studs, they are headless, double-ended screws but have wood screw threads at both ends. Common uses include furniture making, attaching balusters to stairs and flooring, installing finials, creating end-to-end joints and other woodworking applications where wood needs to be joined using a single hidden fastener and blind holes. Dowel screws are also known as:  wood screw threaded studs.  Since they do not have a head, use locking pliers or a driver tool to install.
Dowel screws have coarse, widely spaced threads that taper to a blunt point designed to start threading into a properly sized pilot hole. Being a thread-forming-type screw, they create their own mating threads in the wood during installation—no nut or tapped hole is needed. Threading at both ends is standard right-hand, so turn the screw clockwise to install. An unthreaded body section, called a plain center, allows locking pliers to be used without damaging threads.