Lockable nut system

A lockable nut system for threaded steel bar having a non circular cross sectional shape, said lockable nut system comprising:

• a screw threaded nut rotatably engageable on said threaded steel bar;
• and
• a locking member sildably engageable on said threaded steel bar, said locking member comprising a generally disc shaped body having a cross sectional aperture therein, and aperture having a shape generally complementing to the cross section shape of the bar to resist rotation about said bar, said nut and said locking member being axially engageably whereby in use said locking member resists rotation in at least one direction of said nut on said bar.

A lockable nut system for threaded steel bar having a non circular cross sectional shape with at least one planar side wall, said lockable nut system comprising:

• a screw threaded nut rotatably engageable on said threaded steel bar, said nu including a coaxially aligned outwardly divergent frusto conical engagement surface at one end thereof;
• and,
• a locking member slidably engageable on said threaded steel bar, said locking member being engageable with said at least one planar side wall of said bar to resist relative rotation therebetween, said locking member including at lest one nut engaging finger engageable against said frusto conical engagement surface of said nut to resist axial separation between said nut and said locking member when engaged.