<P> In countries where the theft of alloy wheels is a serious problem , locking nuts ( or bolts , as applicable ) are available - or already fitted by the vehicle manufacturer - which require a special adaptor ( `` key '' ) between the nut and the wrench to fit and remove . The key is normally unique to each set of nuts . Only one locking nut per wheel is normally used , so they are sold in sets of four . Most designs can be defeated using a hardened removal tool which uses a left - hand self - cutting thread to grip the locking nut , although more advanced designs have a spinning outer ring to frustrate such techniques . </P>
<P> In countries where the theft of alloy wheels is a serious problem , locking nuts ( or bolts , as applicable ) are available - or already fitted by the vehicle manufacturer - which require a special adaptor ( `` key '' ) between the nut and the wrench to fit and remove . The key is normally unique to each set of nuts . Only one locking nut per wheel is normally used , so they are sold in sets of four . Most designs can be defeated using a hardened removal tool which uses a left - hand self - cutting thread to grip the locking nut , although more advanced designs have a spinning outer ring to frustrate such techniques . </P>
when are wheel lock lug nuts commonly used
when are wheel lock lug nuts commonly used
countries where the theft of alloy wheels is a serious problem
countries where the theft of alloy wheels is a serious problem