Feature

●Material: Stainless steel
●Size: 12
●The picture is for reference only
●Ship from Japan

[M12　10本]



[M12　1本]



[M12　50本]




Description

A loosening nut that can be used with regular nuts. Tighten the nut to the bolt as usual, turn it by hand until it stays on top of the nut, then tighten the nut with a wrench, tighten the circumference of 1/4 to 1/3 of the circumference, and the inner edge of the ring bite into the valley of the bolt and tighten it completes.