Technology Components › COLLAR - AXLE RETAINER (PACK OF 10) Image 1 of 1 COLLAR - AXLE RETAINER (PACK OF 10) $6.85 Code: COLLAR Add To Cart Added! Code: COLLAR I.D. 6.2mm. Used to retain wheels on the 6.0mm diameter axle shaft (CFT). It uses a small grub screw. You Might Also Like Quick View TYRE MATERIAL $3.75 Quick View GRUB SCREWS 2.5MM (PACK OF 10) $2.60 Quick View BELT O-RING 55 X 1.5MM (PACK OF 10) $6.00 Quick View GRUB SCREWS (PACK OF 10) $2.60