Perfect for air compressor maintenance, these replacement parts include bolts, and nuts that are compatible with pneumatic tools and accessories. Their sturdy construction resists wear and tear, ensuring performance. Whether for industrial tasks or home projects, these fittings provide reliable support and functionality. Features -Color:Grey -Material:Alloy -Size:5.50X1.90X1.90cm/2.16X0.75X0.75in -Note: Suitable for casters with inner hole 12 MM -Robust installation: high-strength bolts and screws ensure a firm connection, reducing vibration and noise for stable equipment performance -Durable wheel axle: the hexagonal wheel axle is highly wear-resistant, ensuring longevity and reducing maintenance needs in environments -Quick-release pins: the quick-release pin design facilitates easy maintenance and replacement, enhancing the flexibility and usability of your equipment -Reliable nuts: comes with standard nuts that provide excellent fastening, preventing loosening and ensuring longterm stability of the air compressor -Convenient spare parts: ideal for easy replacement and as spare parts, ensuring your air compressor remains in optimal working condition Package list: 4 x Air compressor wheel bolts 4 x nuts