Spacers Round

Round spacers are unthreaded tubular sleeves that set a precise distance between two components on a through-screw. Unlike standoffs, they have no threads — a screw passes straight through the bore. They are simple, economical spacing elements used in electronics, panels, and machinery. We stock round spacers across every common material and length.

Spacer vs. Standoff

The key difference: a spacer is unthreaded and a screw passes through it, while a standoff is threaded and screws attach to it. Use a spacer when a single bolt runs through the whole stack to set gap; use a standoff when you need to mount from both sides or stack assemblies.

Materials

Aluminum: lightweight and economical. Brass: conductive, corrosion-resistant, easily machined. Nylon: non-conductive and non-marring, for electrical isolation. 18-8 stainless: maximum strength and corrosion resistance. Match material to whether the spacer should conduct, isolate, or simply set distance.

Dimensions

Round spacers are specified by outside diameter, inside diameter (the screw clearance hole), and length (the spacing distance). Choose the ID to clear your screw and the length for the required gap.

Selecting the Right Round Spacer

Match the inside diameter to your screw size, the length to the desired spacing, and the OD to your bearing and clearance needs. Choose nylon for electrical isolation, metal for strength and grounding. Verify the screw is long enough to pass through the spacer and engage its threads on the far side.

Use the filters to narrow by length, inside diameter, and material. Orders before 12 PM ET ship same day.