Screw with spiral triangular threads
Screw with tamper-proof head
Screw with tapered formed bushing
Screw with thin head
Screw with two cut removing curved grooves
Screw with two types of threads
Screw with unthreaded portion formed for absorbing bending loads
Screw, method and rolling die for the production thereof
Screw, particularly wood screw
Screw-and-nut unit or screw joint
Screw-nut fastener assembly
Screw-type fastening device
Screws
Screws and threadforms
Screws having selected heat treatment and hardening
Security fastener and drive tool for driving both security faste
Security nuts
Security washer for security paneling system
Segmented rod used for bonding two adjacent planar surfaces
Selectively hardened self drilling fasteners