Nut member with tightness-indicating protrusions and...
Opti-mechanical displacement indicator with high sensitivity
Opti-mechanical torque indicating connecting member
Preloaded locknut
Prestress-monitoring element for screw-type anchors
Screw and nut assembly
Sliding anchor
Structural blind fastener
Stud/bolt load gauge
System for attaching a structural member to a supporting member
Tension bolt having adjustable stress level
Tension gauge
Tension indicating and lock cone washer
Tension indicating washer
Tension indicating washer for smooth and irregular surfaces
Tension indicating washer improvements
Tension-indicating fasteners
Tensioning system
Threaded bolt having measurement planes
Threaded bolt having measurement planes for use in...