COMPETITION TIME! We're back with new vibration tests! In this video series, we will be putting Nord-Lock washers to the test against locking wire, tab washers and adhesive, to find out the best way to secure a bolted joint. PLUS – how much do you know about the Junker test? Answer the question in our video for the chance to win a Nord-Lock goodie bag. Leave your answer in the comments below and the winner will be announced in the final video. Good luck! #thechallenge #nordlock #1inbolting #happ