HPS Performance Titanium Coolant Bleed Screw HW22-1001 replaces and upgrades factory bleeder plastic bleeder screw that are prone to failure. Don't get left stranded due to a failed coolant bleeder screw. For 2020 Toyota Supra J29, most BMW and Mini Cooper vehicles, the plastic coolant bleeder screw is a common failure point. To combat this, HPS has produced its own Titanium Coolant Bleeder Screw. This relatively inexpensive upgrade can save you a lot of trouble whether you commute or track your vehicle. We chose the best materials for this upgrade. Each piece is precision CNC machined from Grade 5 titanium which will never fail. Coupled with a Viton O-ring which is more chemical resistant than any standard rubber O-ring. For ease of service, HPS has eliminated the awkwardly large crosshead in favor of a 4mm allen head. The HPS Titanium Bleeder Screw looks and works great on 2020 Toyota Supra J29, most BMW and Mini Cooper vehicles. CNC Machined from Grade 5 aerospace titanium. Easy to install with 4mm allen head. A must-have upgrade for track days. Made in USA.