On Thursday, February 16, 2017 at 6:45:45 AM UTC-8, OHM Ω http://aviation.derosaweb.net wrote:
Very nice web site. I did search for "AL-KO Lock" but they are all for some fancier AL-KO couplers or stabilizers. I might send them an email. The hunt continues.

Below is the key lock

http://www.tauntontrailers.co.uk/bra...lock-731-p.asp