Notes: 643819 HEX HEAD SCREW M14X2X135 12.9 GRIP is original CARRARO product. 643819 HEX HEAD SCREW M14X2X135 12.9 GRIP2 is commonly used in transmissions/axles/engines 413630, 413630, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849