Notes: 407300 HEX SOCKET HEAD CAP SCREW UNI 5931 M14X1 is original CARRARO product. 407300 HEX SOCKET HEAD CAP SCREW UNI 5931 M14X12 is commonly used in transmissions/axles/engines 407346, 407346, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849