M12 Tri-Groove Security Nuts

Tri groove security nut specification ItemTri-Groove Nut , Tamper Proof Nuts ,Security nut, Anti-theft Nut , Tri-lock nutMaterialcarbon steelSizeM6.M8.M10.M12 / other size can be custom-made according to drawing.FinishgalvanizedHeadcone nutMOQ5000( when custome-made)Lead Time   10-20 Working Days Sample Free PaymentWestern Union, T/T        ShipmentBy sea or DHL.Fedex etc   What's  tri groove nuts?Tri Groove nuts are a type of security nut that feature a tapered diameter, making the nuts resistant to gripping devices. They can only be removed with their special tri-groove socket drivers, which grip the indentations along the outside of the fastener to turn the nut along a thread."  Application scene:Tri Groove security nuts have a tapered diameter, which makesthem resistant to gripping devices. They require a special TriGroove socket for installation, as the socket grips the indentationson the outside of the fastener and turns the nut along a thread."      /* March 10, 2023 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1