M10 1.25 Fine Thread Lock Nut OEM 240Z 260Z 280Z 510

OEM Nissan M10 JIS lock nut. This is a small hex head (14mm) with M10-1.25 thread, locking nut. This nut is used a lot on the S30 Z cars because of the extra clearance it provides makes it necessary in some cases, some examples: Tension rod to ball joint, Front cross member to uni-body washers.