Outside diameter: 5/8"/15.87mm Inside diameter: 1/4”/6.52mm (fits 1/4" or M6 bolts) Length: 1" Package Quantity: 10 Pack All of our unthreaded aluminum spacers and standoffs are made from quality 6061-T6 aluminum alloy, which provides excellent strength, durability, and corrosion resistance. Our aluminum spacers come in various diameters and lengths to accommodate different application requirements, please select the correct option from the menu that will meet your requirements. This spacer may also be available with a black anodized finish or mild steel material, please visit our store for other options. Upgrade your projects with premium aluminum spacers from Metal Spacers Online. These round aluminum spacers feature a 5/8" outside diameter and 1/4" inside diameter designed to fit 1/4" or M6 screws and bolts. Manufactured from durable T-6061 aluminum alloy, these aluminum spacers provide excellent strength, corrosion resistance, and lightweight performance for industrial, automotive, electronics, fabrication, and DIY applications. These aluminum unthreaded spacer components are ideal spacers for screws, mounting hardware, panel alignment, and equipment assembly. The smooth tumbled finish delivers a clean professional appearance while helping reduce surface imperfections. Whether you need hardware spacers for machinery, robotics, home improvement, or manufacturing projects, these aluminum stand offs provide dependable spacing and support. Designed as versatile spacers & standoffs, these aluminum standoff spacer bushings help maintain proper clearance between components while supporting airflow and heat dissipation. Aluminum offers excellent thermal conductivity, making these standoff spacer solutions useful for electronic and mechanical assemblies where thermal management is important. These metal round spacers are available in multiple lengths to suit a variety of installation needs. Use these aluminum bushing spacer parts in custom builds, repairs, industrial applications, or general-purpose hardware projects. Their precision sizing ensures compatibility with standard 1/4" and M6 fasteners. Metal Spacers Online offers quality metal spacer solutions including round spacer options, hardware spacer components, aluminum bushings, and industrial spacer products for professionals and hobbyists alike. Browse our store for additional aluminum spacer sizes, standoffs spacer hardware, and metal hardware solutions for your next project.