JOYOR S10-S-Z Hydraulic Brake Sealing Screw

The JOYOR S10-S-Z Hydraulic Brake Sealing Screw is a precision-engineered hardware component designed specifically for the JOYOR S10SZ electric scooter. It installs at the hydraulic brake caliper or master cylinder assembly to seal and secure critical fluid pathways, preventing brake fluid leakage and maintaining consistent braking performance. This small but essential screw ensures proper system integrity within the scooter’s oil-based braking system.

Replace this sealing screw whenever performing brake maintenance, after a fluid bleed, or if the original screw shows signs of corrosion, stripping, or compromised thread integrity. It is also recommended to replace it if brake fluid leakage is detected near the caliper or lever housing — a common indicator of seal failure or improper torque on the sealing point.

This is a genuine JOYOR OEM part (Spec Code: OBSS-ST) with exact thread pitch, length, and head profile for direct fit on the S10SZ model — no modifications or adapters required.