This product is designed to enhance the functionality of air compressors and pneumatic tools by providing durable wheel hub bolts and nuts. Crafted with precision, these accessories ensure secure installation and reliable performance. Ideal for replacing worn-out parts, they help maintain the efficiency of your equipment in various work environments. Features -Color:Grey -Material:Alloy -Size:5.50X1.90X1.90cm/2.16X0.75X0.75in -Note: Suitable for casters with inner hole 12 MM -Durable construction: high-strength installation bolts and screws ensure a secure connection, reducing vibration and noise for stable equipment operation -Wear-resistant axle: hexagonal wheel axle is designed for durability, minimizing maintenance frequency and suitable for high-intensity work environments -Quick release design: the quick-release pin design allows for easy maintenance and replacement, enhancing equipment usability and flexibility -Standard nut included: comes with standard nuts for excellent fastening, preventing loosening and ensuring longterm stable operation of the air compressor -Convenient replacement: ideal for easy replacement and spare parts, ensuring your air compressor remains in optimal working condition Package list: 4 x Air compressor wheel bolts 4 x nuts