This replacement roll bar cage bolt and nut set is designed for use on select Polaris RZR, Ranger, and ACE models where factory hardware is used to secure the roll cage to the chassis. The set includes 3/8-inch by 1-1/4-inch Allen head bolts with matching nylon lock nuts, manufactured to OEM dimensional specifications for proper fit. These fasteners are commonly used at the front cage mounting points near the dash area, though usage may vary by model and year. Supplied as a set of four bolts and four nuts, they are intended for direct replacement of worn or damaged hardware; verify size and location before ordering. Fitment Fits many Polaris models, including but not limited to: Ranger 400 Ranger 500 Ranger 800 Ranger 900 RZR 570 RZR 800 RZR 900 ACE models (verify application by model and year) Replacement Part Number(s) Polaris 7517935 Polaris 7542451