Heavy Duty Aluminum Round Spacers Measuring Quarter Inch Thick With A Point One Six Six Inch Center Hole And Five Sixteenths Width Ideal For Bolted Joints And Frame Assemblies That Demand Zero Play And Rock Solid Reliability

Pack of 8 1/4 In Aluminum Spacer Rings For Bolt Joints
✔️ OD 5/16 In ID.166 In Length 1/4 In For Structural Builds

This pack of eight heavy duty aluminum round spacers keeps your bolted joints perfectly aligned while stopping frame flex during daily operation. Machine shops, fab teams, and DIY crew members grab these handy rings to fill gaps in jigs, custom assemblies, and rigging builds where zero play is required.

✅ Outer diameter measures 5/16 inch for solid mounting coverage
✅ Inner hole opens to.166 inch to fit standard hex bolts snugly
✅ Wall thickness holds its shape under heavy clamp loads and torque
✅ Smooth machined finish slides right onto fasteners without scrubbing

💡 How do aluminum standoffs stabilize bolted joints compared to thin washers?

Thin metal discs compress unevenly and let frame wobble around, but thicker aluminum sleeves lock everything dead still under pressure.
- Consistent inner bore spacing eliminates play in high cycle machinery and automated guides
- Rigid tube walls distribute clamping force evenly so fasteners stay seated through rough shifts
- Oxide protective layer stops rust buildup near hydraulic lines and cutting fluids
- Straight cut edges slide fast over threaded rods which saves setup time on complex builds
✝️