Please quote as below your minimum quantity.1)Barrel nut Material as per ASTM A194 2HM See attached drawing for dimension2) Flange Hex bolt as per ASTM A193 B7M Length,L:50mm, size: M10. Thread Length:33mm3)Hinge pin material as per ASTM A193-B7M See attached drawing for dimensionPlease let me know if you need more information.