8mm Bore Shaft Collars Pack Of 4 For Linear Rails With 30mm Outer Diameter And 10mm Thick, M4 Set Screw, Aluminum Alloy Locking Rings For Precise Positioning, End Stops, And Easy Onboard Mounting In DIY Projects Sinoblu

8mm Bore Shaft Collars Pack of 4 for Linear Rails
✔️ 8mm bore, 30mm OD, 10mm thick, M4 screw, aluminum alloy

This 4-pack of shaft collars clamps securely on 8mm shafts, ideal for fixing parts, creating end stops, and precise positioning along linear rails in DIY CNC, 3D printer, or laser projects.

✅ Fits 8mm shaft diameter for secure positioning
✅ Outer diameter 30mm and thickness 10mm for solid engagement
✅ Aluminum alloy body provides light weight and corrosion resistance
✅ M4 set screws clamp without damaging the shaft
✅ Pack of 4 for multiple mounting points on linear rails

💡 What is a shaft collar used for in a DIY or small machine setup? It's handy for fixing and locating components on a shaft and setting precise end stops. - Fixes components in place on rotating shafts - Creates precise end stops and limits travel - Works with M4 screws and aluminum collars for quick onboard mounting