M12 x 240mm Coach Bolts and Nuts DIN 603 (Carriage Bolts and Nuts)
Coach Bolts & Screws – Arun Fastener Company
Carriage Bolt & Nut M10 x 80mm
Bought carriage bolts and t-nuts today, thinking I was being smart about a clean fastening system for some garden furniture. Got all the way home before I realized how stupid that was. :