Notes: 380811 STUD 10.9 L88 M22x2.5x23.7, M20X1.5x50 is original CARRARO product. 380811 STUD 10.9 L88 M22x2.5x23.7, M20X1.5x502 is commonly used in transmissions/axles/engines 372485, 372485, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849