Radially expanding bolt assembly
Radiator mounting
Rag-bolt
Rail anchoring spike
Rail fastener
Rail fastener
Rail heater clip
Rail securing method
Railroad bearing structures
Railway axle end cap screw locking device
Rapid adjusting and mounting theatrical lighting system
Rapid fastener of the bayonet type
Ratchet fit fastener
Re-usable breakaway safety joint
Re-usable, spin-stopping fastener
Reamer screw and building panels erected with reamer screws
Receptacle and means and method of formation and mechanical...
Recess in fastening element head and method of making it
Recessed head fastener and driver systems
Recessed head screw