Nut lock

a device, as a metal plate bent up at the corners, to prevent a nut from becoming unscrewed, as by jarring.

See also: Nut

References in periodicals archive ?
Limited Tenders are invited for Supply of cap screw, nut lock, loose spring assy, cap filter water, clamp, cock drain, elbow, head lamp, flange, grommet
Tenders are invited for Nut Lock For Bobrn Wagon To Drg.
Tenders are invited for U Clamp With Hex Nut Lock Washer.
Limited Tenders are invited for Supply of Screw Slotted Cyl Head, Rivet Csk Hd Spl, Nut Lock Elastic Top, Pin Taper (Bof-Kp-3x22)
He added: "We're warning drivers to make sure cars are locked up properly, wheel nut locks are used and any property attractive to thieves is removed.
A single hydraulic cylinder drives the nut locks that fix the moving platens to the tiebars.