Rockmount Research and Alloys 90380 Thread Locking Insert: M6 x 1 Internal Thread, M8 x 1 External Thread, Metric, 15/32" OAL, Self-Lock Thin Wall
Thread Locking Insert: M6 x 1 Internal Thread, M8 x 1 External Thread, Metric, 15/32" OAL, Self-Lock Thin Wall Case-Hardened Steel
$6.37