Primo Remix Axle Conversion Kit material: chromoly type: female with 3/8 inch axle bolts | sealed diameter 14mm axle | 3/8 inch bolts thread: 1mm (25,4 tpi) cone nuts | 0,94mm (24 tpi) bolts length: 118mm additional information: replacement female axle for the Primo Remix Cassette comes with 3/8x24tpi axle bolts and washers