Notes: 408919 HEX HEAD FLANGE SCREW DIN 6921 M16X110 1 is original CARRARO product. 408919 HEX HEAD FLANGE SCREW DIN 6921 M16X110 12 is commonly used in transmissions/axles/engines 411771, 411771, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849