Project Kics WCB283K Compression Bolt Set M12x1.25 28mm Black 20 Pieces

The Project Kics WCB283K Compression Bolt Set is an innovative wheel accessory designed to enhance the security and appearance of open-ended racing lug nuts. This 20-piece set features a unique design that combines functionality with a clean, finished look for your wheel setup.

Key Features:

• Built-in steel ball and spring mechanism inside aluminum bolt body for enhanced loosening prevention
• M12x1.25 thread pitch, 28mm length - compatible with through-style (long type) racing nuts
• Black anodized finish for durability and sleek appearance
• Creates the appearance of extended hub bolts while improving nut retention
• Spring tension provides washer-like effect to help maintain proper torque
• Includes 6mm hex L-type wrench for installation
• Manufactured in Japan by KYO-EI to ISO standards

Installation Notes:

• Designed exclusively for use with open-ended (through) racing lug nuts
• Requires minimum 8mm of excess thread beyond the lug nut
• Maximum tightening torque: 4 N·m (0.4 kgf·m)
• Must be installed after lug nuts are properly torqued to vehicle
• Regular retightening of both lug nuts and compression bolts is recommended

Project Kics is part of the renowned KYO-EI industrial corporation, with over 50 years of experience manufacturing premium wheel accessories for street and racing applications. Each compression bolt is precision-engineered from high-quality materials to deliver reliable performance and long-lasting durability.