DIN 603 Zinc Plated 307A 1/2' M14 M6 Coach Bolt Hardened Steel Grade 10.9 Extra Large Head M4 Fine Thread Carriage Bolts - China Carriage Bolt, Bolt | Made-in-China.com
M8 x 45mm Full Thread Carriage Bolts (DIN 603) - 316 Stainless Steel: Accu.co.uk: Precision Screws