Priya Industries offers Cotter Pins. Priya Industries offers bicycle parts and handtools for both professional as well as amateur users. These Cotter Pins are of 9.5 mm Crank diameter with 42mm length. They can also be availed in 9.00mm x 41mm sizes and in 8.5mm & 9.7 & 10 mm completed with Nut & Washer ZP or Golden Finish.