Hardware Spacers

Select material based on strength, corrosion resistance, and weight: stainless steel for strength and corrosion resistance, aluminum for lightweight applications, brass for conductivity and moderate strength, and plastic (nylon, Delrin) for non-conductive, low-load uses

Verify outer diameter, inner bore diameter (to match the bolt or shaft), length/thickness (to set gap), and any chamfers or shoulder features; also confirm tolerance and whether a metric or imperial size is required

Sets are typically more cost-effective if you need multiple sizes or quantities, while individual spacers are better when you need a specific size or material; consider average project needs and stocking convenience

Yes: non-conductive spacers (nylon, plastic) provide electrical isolation, while metal spacers conduct and can be used to ground or create electrical paths; choose material based on whether isolation or conductivity is required

Store spacers in a dry, labeled container sorted by size and material; clean metal spacers to remove debris and apply light oil or keep in desiccated storage to reduce corrosion for ferrous types

Check the spacer's compressive strength and material yield limits for load-bearing use, and confirm manufacturing tolerances for bore and length to ensure fit and prevent misalignment under load

Measure inner bore diameter with calipers to fit the fastener, measure outer diameter for clearance, and measure length to match the required spacing; note material and any shoulder or flange details